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[PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() 266+ messages / 2 participants [nested] [flat]
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() @ 2023-01-21 00:09 Andres Freund <andres@anarazel.de> 0 siblings, 0 replies; 266+ messages in thread From: Andres Freund @ 2023-01-21 00:09 UTC (permalink / raw) This just updates the places that "Zero initialize instr_time uses causing compiler warnings" changed, to see whether this is a nicer approach. --- src/include/portability/instr_time.h | 24 ++++++++++++++------ src/backend/access/transam/xlog.c | 11 +++------- src/backend/storage/buffer/bufmgr.c | 16 +++++--------- src/backend/storage/file/buffile.c | 16 +++++--------- src/backend/storage/ipc/latch.c | 8 +++---- src/bin/psql/common.c | 33 +++++++++++++--------------- 6 files changed, 50 insertions(+), 58 deletions(-) diff --git a/src/include/portability/instr_time.h b/src/include/portability/instr_time.h index af2ab6ec887..2d1ff4f7f82 100644 --- a/src/include/portability/instr_time.h +++ b/src/include/portability/instr_time.h @@ -17,6 +17,10 @@ * * INSTR_TIME_IS_LT(x, y) x < y * + * INSTR_TIME_ZERO() an instr_time set to 0 + * + * INSTR_TIME_CURRENT() an instr_time set to current time + * * INSTR_TIME_SET_ZERO(t) set t to zero (memset is acceptable too) * * INSTR_TIME_SET_CURRENT(t) set t to current time @@ -110,7 +114,7 @@ typedef struct instr_time #define PG_INSTR_CLOCK CLOCK_REALTIME #endif -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_clock_gettime_ns(void) { @@ -123,8 +127,8 @@ pg_clock_gettime_ns(void) return now; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_clock_gettime_ns()) +#define INSTR_TIME_CURRENT(t) \ + pg_clock_gettime_ns() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = NS_PER_S * (s)) @@ -138,7 +142,7 @@ pg_clock_gettime_ns(void) /* Use QueryPerformanceCounter() */ -/* helper for INSTR_TIME_SET_CURRENT */ +/* helper for INSTR_TIME_CURRENT */ static inline instr_time pg_query_performance_counter(void) { @@ -160,8 +164,8 @@ GetTimerFrequency(void) return (double) f.QuadPart; } -#define INSTR_TIME_SET_CURRENT(t) \ - ((t) = pg_query_performance_counter()) +#define INSTR_TIME_CURRENT(t) \ + pg_query_performance_counter() #define INSTR_TIME_SET_SECONDS(t, s) \ ((t).ticks = s * GetTimerFrequency()) @@ -181,7 +185,13 @@ GetTimerFrequency(void) #define INSTR_TIME_IS_LT(x, y) ((x).ticks < (y).ticks) -#define INSTR_TIME_SET_ZERO(t) ((t).ticks = 0) +#define INSTR_TIME_ZERO(t) (instr_time){0} + +#define INSTR_TIME_SET_CURRENT(t) \ + (t) = INSTR_TIME_CURRENT() + +#define INSTR_TIME_SET_ZERO(t) \ + ((t) = INSTR_TIME_ZERO()) #define INSTR_TIME_SET_CURRENT_LAZY(t) \ (INSTR_TIME_IS_ZERO(t) ? INSTR_TIME_SET_CURRENT(t), true : false) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index fb4c860bdea..f563800c8ab 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -2178,7 +2178,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) Size nbytes; Size nleft; int written; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); /* OK to write the page(s) */ from = XLogCtl->pages + startidx * (Size) XLOG_BLCKSZ; @@ -2191,8 +2191,6 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* Measure I/O timing to write WAL data */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -2204,9 +2202,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) */ if (track_wal_io_timing) { - instr_time duration; + instr_time duration = INSTR_TIME_CURRENT(); - INSTR_TIME_SET_CURRENT(duration); INSTR_TIME_SUBTRACT(duration, start); PendingWalStats.wal_write_time += INSTR_TIME_GET_MICROSEC(duration); } @@ -8137,7 +8134,7 @@ void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) { char *msg = NULL; - instr_time start; + instr_time start = INSTR_TIME_ZERO(); Assert(tli != 0); @@ -8153,8 +8150,6 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* Measure I/O timing to sync the WAL file */ if (track_wal_io_timing) INSTR_TIME_SET_CURRENT(start); - else - INSTR_TIME_SET_ZERO(start); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index 800a4248c95..d8baf80e650 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -1012,19 +1012,17 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum, MemSet((char *) bufBlock, 0, BLCKSZ); else { - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); smgrread(smgr, forkNum, blockNum, (char *) bufBlock); if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_read_time, io_time); @@ -2826,8 +2824,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) { XLogRecPtr recptr; ErrorContextCallback errcallback; - instr_time io_start, - io_time; + instr_time io_start = INSTR_TIME_ZERO(); Block bufBlock; char *bufToWrite; uint32 buf_state; @@ -2904,8 +2901,6 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * bufToWrite is either the shared buffer or a copy, as appropriate. @@ -2918,7 +2913,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); pgstat_count_buffer_write_time(INSTR_TIME_GET_MICROSEC(io_time)); INSTR_TIME_ADD(pgBufferUsage.blk_write_time, io_time); diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c index 0a51624df3b..6f813279690 100644 --- a/src/backend/storage/file/buffile.c +++ b/src/backend/storage/file/buffile.c @@ -429,8 +429,7 @@ static void BufFileLoadBuffer(BufFile *file) { File thisfile; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -446,8 +445,6 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); /* * Read whatever we can get, up to a full bufferload. @@ -468,7 +465,8 @@ BufFileLoadBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_read_time, io_time); } @@ -500,8 +498,7 @@ BufFileDumpBuffer(BufFile *file) while (wpos < file->nbytes) { off_t availbytes; - instr_time io_start; - instr_time io_time; + instr_time io_start = INSTR_TIME_ZERO(); /* * Advance to next component file if necessary and possible. @@ -527,8 +524,6 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) INSTR_TIME_SET_CURRENT(io_start); - else - INSTR_TIME_SET_ZERO(io_start); bytestowrite = FileWrite(thisfile, file->buffer.data + wpos, @@ -543,7 +538,8 @@ BufFileDumpBuffer(BufFile *file) if (track_io_timing) { - INSTR_TIME_SET_CURRENT(io_time); + instr_time io_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(io_time, io_start); INSTR_TIME_ADD(pgBufferUsage.temp_blk_write_time, io_time); } diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c index f4123e7de7e..8092ff4a984 100644 --- a/src/backend/storage/ipc/latch.c +++ b/src/backend/storage/ipc/latch.c @@ -1385,8 +1385,7 @@ WaitEventSetWait(WaitEventSet *set, long timeout, uint32 wait_event_info) { int returned_events = 0; - instr_time start_time; - instr_time cur_time; + instr_time start_time = INSTR_TIME_ZERO(); long cur_timeout = -1; Assert(nevents > 0); @@ -1401,8 +1400,6 @@ WaitEventSetWait(WaitEventSet *set, long timeout, Assert(timeout >= 0 && timeout <= INT_MAX); cur_timeout = timeout; } - else - INSTR_TIME_SET_ZERO(start_time); pgstat_report_wait_start(wait_event_info); @@ -1489,7 +1486,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout, /* If we're not done, update cur_timeout for next iteration */ if (returned_events == 0 && timeout >= 0) { - INSTR_TIME_SET_CURRENT(cur_time); + instr_time cur_time = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(cur_time, start_time); cur_timeout = timeout - (long) INSTR_TIME_GET_MILLISEC(cur_time); if (cur_timeout <= 0) diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c index f907f5d4e8d..5badb029e83 100644 --- a/src/bin/psql/common.c +++ b/src/bin/psql/common.c @@ -1269,15 +1269,12 @@ DescribeQuery(const char *query, double *elapsed_msec) bool timing = pset.timing; PGresult *result; bool OK; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); *elapsed_msec = 0; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* * To parse the query but not execute it, we prepare it, using the unnamed @@ -1350,7 +1347,8 @@ DescribeQuery(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1400,16 +1398,13 @@ ExecQueryAndProcessResults(const char *query, { bool timing = pset.timing; bool success; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); PGresult *result; FILE *gfile_fout = NULL; bool gfile_is_pipe = false; if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); if (pset.bind_flag) success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0); @@ -1490,7 +1485,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1595,7 +1591,8 @@ ExecQueryAndProcessResults(const char *query, */ if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec = INSTR_TIME_GET_MILLISEC(after); } @@ -1693,8 +1690,7 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) int ntuples; int fetch_count; char fetch_cmd[64]; - instr_time before, - after; + instr_time before = INSTR_TIME_ZERO(); int flush_error; *elapsed_msec = 0; @@ -1706,8 +1702,6 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) INSTR_TIME_SET_CURRENT(before); - else - INSTR_TIME_SET_ZERO(before); /* if we're not in a transaction, start one */ if (PQtransactionStatus(pset.db) == PQTRANS_IDLE) @@ -1738,7 +1732,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1786,7 +1781,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec) if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } @@ -1926,7 +1922,8 @@ cleanup: if (timing) { - INSTR_TIME_SET_CURRENT(after); + instr_time after = INSTR_TIME_CURRENT(); + INSTR_TIME_SUBTRACT(after, before); *elapsed_msec += INSTR_TIME_GET_MILLISEC(after); } -- 2.38.0 --vt42kbp2j7rjcapp-- ^ permalink raw reply [nested|flat] 266+ messages in thread
* [PATCH v3 2/2] Protect role resolution in roleSpecsToIds() against concurrent DROP @ 2026-07-06 08:28 Bertrand Drouvot <bertranddrouvot.pg@gmail.com> 0 siblings, 0 replies; 266+ messages in thread From: Bertrand Drouvot @ 2026-07-06 08:28 UTC (permalink / raw) roleSpecsToIds() resolves role names to OIDs without acquiring any lock. A concurrent DROP ROLE that commits between this resolution and the caller's use of the OID leaves the caller operating on a stale OID, which can create orphaned pg_auth_members entries. Fix this by acquiring AccessShareLock on each resolved role within roleSpecsToIds(), ensuring the role cannot be dropped while any caller is using its OID. The AccessShareLock is held until end of transaction, so an open transaction that performed GRANT, CREATE ROLE ... ROLE, or REASSIGN OWNED BY will block a concurrent DROP ROLE on the same role until it commits. Note that this introduces a potential deadlock between GRANT and DROP ROLE when both target overlapping roles. The deadlock is detected and one session is aborted with an error, which is preferable to the pre-patch behavior of silently creating orphaned catalog entries. Author: Bertrand Drouvot <bertranddrouvot.pg@gmail.com> Reported-by: Virender Singla <virender.cse@gmail.com> Reviewed-by: Surya Poondla <suryapoondla4@gmail.com> Discussion: https://postgr.es/m/aki6fMNLUx6%2BBR8K%40bdtpg Discussion: https://postgr.es/m/CAM6Zo8woa62ZFHtMKox6a4jb8qQ%3Dw87R2L0K8347iE-juQL2EA%40mail.gmail.com --- src/backend/commands/user.c | 21 +++++- .../expected/role-membership-drop-member.out | 75 +++++++++++++++++++ src/test/isolation/isolation_schedule | 1 + .../specs/role-membership-drop-member.spec | 51 +++++++++++++ 4 files changed, 147 insertions(+), 1 deletion(-) 14.9% src/backend/commands/ 48.1% src/test/isolation/expected/ 36.1% src/test/isolation/specs/ diff --git a/src/backend/commands/user.c b/src/backend/commands/user.c index 5b869e91c17..375fb527af2 100644 --- a/src/backend/commands/user.c +++ b/src/backend/commands/user.c @@ -1778,6 +1778,8 @@ ReassignOwnedObjects(ReassignOwnedStmt *stmt) * roleSpecsToIds * * Given a list of RoleSpecs, generate a list of role OIDs in the same order. + * Each role is locked with AccessShareLock to prevent concurrent DROP ROLE + * from removing it between resolution and the caller's catalog update. * * ROLESPEC_PUBLIC is not allowed. */ @@ -1792,7 +1794,24 @@ roleSpecsToIds(List *memberNames) RoleSpec *rolespec = lfirst_node(RoleSpec, l); Oid roleid; - roleid = get_rolespec_oid(rolespec, false); + if (rolespec->roletype == ROLESPEC_CSTRING) + roleid = RoleNameGetOid(rolespec->rolename, + AccessShareLock, false, + NULL, NULL); + else + { + roleid = get_rolespec_oid(rolespec, false); + LockSharedObject(AuthIdRelationId, roleid, 0, + AccessShareLock); + + /* Recheck that the role still exists after locking. */ + if (!SearchSysCacheExists1(AUTHOID, ObjectIdGetDatum(roleid))) + ereport(ERROR, + (errcode(ERRCODE_UNDEFINED_OBJECT), + errmsg("role \"%s\" does not exist", + get_rolespec_name(rolespec)))); + } + result = lappend_oid(result, roleid); } return result; diff --git a/src/test/isolation/expected/role-membership-drop-member.out b/src/test/isolation/expected/role-membership-drop-member.out new file mode 100644 index 00000000000..5b267ea32c2 --- /dev/null +++ b/src/test/isolation/expected/role-membership-drop-member.out @@ -0,0 +1,75 @@ +Parsed test spec with 2 sessions + +starting permutation: s1_begin s1_grant s2_drop_member s1_commit s2_check_orphans +step s1_begin: BEGIN; +step s1_grant: GRANT regress_role_group TO regress_role_member; +step s2_drop_member: DROP ROLE regress_role_member; <waiting ...> +step s1_commit: COMMIT; +step s2_drop_member: <... completed> +step s2_check_orphans: + SELECT count(*) + FROM pg_auth_members m + LEFT JOIN pg_authid ra ON m.roleid = ra.oid + LEFT JOIN pg_authid me ON m.member = me.oid + LEFT JOIN pg_authid gr ON m.grantor = gr.oid + WHERE ra.oid IS NULL OR me.oid IS NULL OR gr.oid IS NULL; + +count +----- + 0 +(1 row) + + +starting permutation: s1_begin s1_alter_add s2_drop_member s1_commit s2_check_orphans +step s1_begin: BEGIN; +step s1_alter_add: ALTER GROUP regress_role_group ADD USER regress_role_member; +step s2_drop_member: DROP ROLE regress_role_member; <waiting ...> +step s1_commit: COMMIT; +step s2_drop_member: <... completed> +step s2_check_orphans: + SELECT count(*) + FROM pg_auth_members m + LEFT JOIN pg_authid ra ON m.roleid = ra.oid + LEFT JOIN pg_authid me ON m.member = me.oid + LEFT JOIN pg_authid gr ON m.grantor = gr.oid + WHERE ra.oid IS NULL OR me.oid IS NULL OR gr.oid IS NULL; + +count +----- + 0 +(1 row) + + +starting permutation: s1_begin s1_create_role s2_drop_member s1_commit s2_check_orphans +step s1_begin: BEGIN; +step s1_create_role: CREATE ROLE regress_role_new ROLE regress_role_member; +step s2_drop_member: DROP ROLE regress_role_member; <waiting ...> +step s1_commit: COMMIT; +step s2_drop_member: <... completed> +step s2_check_orphans: + SELECT count(*) + FROM pg_auth_members m + LEFT JOIN pg_authid ra ON m.roleid = ra.oid + LEFT JOIN pg_authid me ON m.member = me.oid + LEFT JOIN pg_authid gr ON m.grantor = gr.oid + WHERE ra.oid IS NULL OR me.oid IS NULL OR gr.oid IS NULL; + +count +----- + 0 +(1 row) + + +starting permutation: s1_begin s1_drop_owned s2_drop_member s1_commit +step s1_begin: BEGIN; +step s1_drop_owned: DROP OWNED BY regress_role_member; +step s2_drop_member: DROP ROLE regress_role_member; <waiting ...> +step s1_commit: COMMIT; +step s2_drop_member: <... completed> + +starting permutation: s1_begin s1_reassign_owned s2_drop_member s1_commit +step s1_begin: BEGIN; +step s1_reassign_owned: REASSIGN OWNED BY regress_role_member TO regress_role_group; +step s2_drop_member: DROP ROLE regress_role_member; <waiting ...> +step s1_commit: COMMIT; +step s2_drop_member: <... completed> diff --git a/src/test/isolation/isolation_schedule b/src/test/isolation/isolation_schedule index b8ebe92553c..8fb8b52b77f 100644 --- a/src/test/isolation/isolation_schedule +++ b/src/test/isolation/isolation_schedule @@ -128,3 +128,4 @@ test: matview-write-skew test: lock-nowait test: for-portion-of test: ddl-dependency-locking +test: role-membership-drop-member diff --git a/src/test/isolation/specs/role-membership-drop-member.spec b/src/test/isolation/specs/role-membership-drop-member.spec new file mode 100644 index 00000000000..989fe996249 --- /dev/null +++ b/src/test/isolation/specs/role-membership-drop-member.spec @@ -0,0 +1,51 @@ +# Test that role membership commands properly lock the grantee/member +# role to prevent concurrent DROP ROLE from creating orphaned pg_auth_members +# entries, or from operating on a stale OID. + +setup +{ + CREATE ROLE regress_role_group; + CREATE ROLE regress_role_member; +} + +teardown +{ + DROP ROLE IF EXISTS regress_role_group; + DROP ROLE IF EXISTS regress_role_member; + DROP ROLE IF EXISTS regress_role_new; +} + +session s1 +step s1_begin { BEGIN; } +step s1_grant { GRANT regress_role_group TO regress_role_member; } +step s1_alter_add { ALTER GROUP regress_role_group ADD USER regress_role_member; } +step s1_create_role { CREATE ROLE regress_role_new ROLE regress_role_member; } +step s1_drop_owned { DROP OWNED BY regress_role_member; } +step s1_reassign_owned { REASSIGN OWNED BY regress_role_member TO regress_role_group; } +step s1_commit { COMMIT; } + +session s2 +step s2_drop_member { DROP ROLE regress_role_member; } +step s2_check_orphans { + SELECT count(*) + FROM pg_auth_members m + LEFT JOIN pg_authid ra ON m.roleid = ra.oid + LEFT JOIN pg_authid me ON m.member = me.oid + LEFT JOIN pg_authid gr ON m.grantor = gr.oid + WHERE ra.oid IS NULL OR me.oid IS NULL OR gr.oid IS NULL; +} + +# GRANT role TO member - concurrent DROP of the member +permutation s1_begin s1_grant s2_drop_member s1_commit s2_check_orphans + +# ALTER GROUP ADD USER - concurrent DROP of the member +permutation s1_begin s1_alter_add s2_drop_member s1_commit s2_check_orphans + +# CREATE ROLE ... ROLE member - concurrent DROP of the member +permutation s1_begin s1_create_role s2_drop_member s1_commit s2_check_orphans + +# DROP OWNED BY role - concurrent DROP of the role +permutation s1_begin s1_drop_owned s2_drop_member s1_commit + +# REASSIGN OWNED BY role - concurrent DROP of the role +permutation s1_begin s1_reassign_owned s2_drop_member s1_commit -- 2.34.1 --Dvg/WemKV0I3T/Od-- ^ permalink raw reply [nested|flat] 266+ messages in thread
end of thread, other threads:[~2026-07-06 08:28 UTC | newest] Thread overview: 266+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2023-01-21 00:09 [PATCH v8 5/5] wip: instr_time: Add and use INSTR_TIME_ZERO(), INSTR_TIME_CURRENT() Andres Freund <andres@anarazel.de> 2026-07-06 08:28 [PATCH v3 2/2] Protect role resolution in roleSpecsToIds() against concurrent DROP Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
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