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help / color / mirror / Atom feedFrom: Dmitrii Dolgov <9erthalion6@gmail.com>
Subject: [PATCH v2 2/3] Add USDT for split location benchmarking
Date: Mon, 15 Jun 2026 16:39:29 +0200
Add new USDTs probe nbtree__page__findsplit__(start / done) for
benchmarking of split logic.
---
src/backend/access/nbtree/nbtsplitloc.c | 5 +++++
src/backend/utils/probes.d | 3 +++
2 files changed, 8 insertions(+)
diff --git a/src/backend/access/nbtree/nbtsplitloc.c b/src/backend/access/nbtree/nbtsplitloc.c
index de9eca3c8b2..c64fef5ab27 100644
--- a/src/backend/access/nbtree/nbtsplitloc.c
+++ b/src/backend/access/nbtree/nbtsplitloc.c
@@ -17,6 +17,7 @@
#include "access/nbtree.h"
#include "access/tableam.h"
#include "common/int.h"
+#include "pg_trace.h"
typedef enum
{
@@ -152,6 +153,8 @@ _bt_findsplitloc(Relation rel,
SplitPoint leftpage,
rightpage;
+ TRACE_POSTGRESQL_NBTREE_PAGE_FINDSPLIT_START(origpage);
+
opaque = BTPageGetOpaque(origpage);
maxoff = PageGetMaxOffsetNumber(origpage);
@@ -425,6 +428,8 @@ _bt_findsplitloc(Relation rel,
strategy);
pfree(state.splits);
+ TRACE_POSTGRESQL_NBTREE_PAGE_FINDSPLIT_DONE(origpage);
+
return firstrightoff;
}
diff --git a/src/backend/utils/probes.d b/src/backend/utils/probes.d
index d827ed0201c..b90b708d862 100644
--- a/src/backend/utils/probes.d
+++ b/src/backend/utils/probes.d
@@ -94,4 +94,7 @@ provider postgresql {
probe nbtree__page__split(BlockNumber);
probe nbtree__page__truncate(int);
+
+ probe nbtree__page__findsplit__start(Page);
+ probe nbtree__page__findsplit__done(Page);
};
--
2.52.0
--hfljrm32b5osvvug
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