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pgsql: Move WAIT_FOR_WAL_* wait events from Client to IPC class 2+ messages / 1 participants [nested] [flat]
* pgsql: Move WAIT_FOR_WAL_* wait events from Client to IPC class @ 2026-07-08 18:00 Alexander Korotkov <[email protected]> 0 siblings, 0 replies; 2+ messages in thread From: Alexander Korotkov @ 2026-07-08 18:00 UTC (permalink / raw) To: [email protected] Move WAIT_FOR_WAL_* wait events from Client to IPC class WAIT_FOR_WAL_FLUSH, WAIT_FOR_WAL_REPLAY, and WAIT_FOR_WAL_WRITE were placed in the WaitEventClient class. But WaitEventClient is about waiting for a socket to become readable or writable, while these events have other delay sources as well: local fsync and local replay, which may be disk- or CPU-bound. WaitEventIPC is a better fit, so move them there. Reported-by: Noah Misch <[email protected]> Discussion: https://postgr.es/m/[email protected] Backpatch-through: 19 Branch ------ REL_19_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/56fa044d15e8b06d84889f06f5def21a62fb86a3 Modified Files -------------- src/backend/utils/activity/wait_event_names.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) ^ permalink raw reply [nested|flat] 2+ messages in thread
* pgsql: Move WAIT_FOR_WAL_* wait events from Client to IPC class @ 2026-07-08 18:00 Alexander Korotkov <[email protected]> 0 siblings, 0 replies; 2+ messages in thread From: Alexander Korotkov @ 2026-07-08 18:00 UTC (permalink / raw) To: [email protected] Move WAIT_FOR_WAL_* wait events from Client to IPC class WAIT_FOR_WAL_FLUSH, WAIT_FOR_WAL_REPLAY, and WAIT_FOR_WAL_WRITE were placed in the WaitEventClient class. But WaitEventClient is about waiting for a socket to become readable or writable, while these events have other delay sources as well: local fsync and local replay, which may be disk- or CPU-bound. WaitEventIPC is a better fit, so move them there. Reported-by: Noah Misch <[email protected]> Discussion: https://postgr.es/m/[email protected] Backpatch-through: 19 Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/306d7680f084cf320841128f23d888294ecba6cd Modified Files -------------- src/backend/utils/activity/wait_event_names.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) ^ permalink raw reply [nested|flat] 2+ messages in thread
end of thread, other threads:[~2026-07-08 18:00 UTC | newest] Thread overview: 2+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 2026-07-08 18:00 pgsql: Move WAIT_FOR_WAL_* wait events from Client to IPC class Alexander Korotkov <[email protected]> 2026-07-08 18:00 pgsql: Move WAIT_FOR_WAL_* wait events from Client to IPC class Alexander Korotkov <[email protected]>
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