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(parent: 7e1f544) | patch
Add wait events for checkpoint delay mechanism.
authorThomas Munro <tmunro@postgresql.org>
Fri, 13 Oct 2023 03:43:22 +0000 (16:43 +1300)
committerThomas Munro <tmunro@postgresql.org>
Fri, 13 Oct 2023 03:43:22 +0000 (16:43 +1300)
commit0013ba290b6684d095d93517ff2ca1fadf79bdb9
tree19ee8a4489ce78072a07277260ec30be8bf24be3tree
parent7e1f544827ec843918f189765863269ff3a1c77ecommit | diff
Add wait events for checkpoint delay mechanism.

When MyProc->delayChkptFlags is set to temporarily block phase
transitions in a concurrent checkpoint, the checkpointer enters a
sleep-poll loop to wait for the flag to be cleared.  We should show that
as a wait event in the pg_stat_activity view.

Reviewed-by: Robert Haas <robertmhaas@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/CA%2BhUKGL7Whi8iwKbzkbn_1fixH3Yy8aAPz7mfq6Hpj7FeJrKMg%40mail.gmail.com
src/backend/access/transam/xlog.c diff | blob | blame | history
src/backend/utils/activity/wait_event_names.txt diff | blob | blame | history
Robert Haas's development tree.