From 2421e9a51d20bb83154e54a16ce628f9249fa907 Mon Sep 17 00:00:00 2001 From: Michael Paquier Date: Mon, 24 Feb 2025 09:51:56 +0900 Subject: Remove read/sync fields from pg_stat_wal and GUC track_wal_io_timing The four following attributes are removed from pg_stat_wal: * wal_write * wal_sync * wal_write_time * wal_sync_time a051e71e28a1 has added an equivalent of this information in pg_stat_io with more granularity as this now spreads across the backend types, IO context and IO objects. So, keeping the same information in pg_stat_wal has little benefits. Another benefit of this commit is the removal of PendingWalStats, simplifying an upcoming patch to add per-backend WAL statistics, which already support IO statistics and which have access to the write/sync stats data of WAL. The GUC track_wal_io_timing, that was used to enable or disable the aggregation of the write and sync timings for WAL, is also removed. pgstat_prepare_io_time() is simplified. Bump catalog version. Bump PGSTAT_FILE_FORMAT_ID, due to the update of PgStat_WalStats. Author: Bertrand Drouvot Discussion: https://postgr.es/m/Z7RkQ0EfYaqqjgz/@ip-10-97-1-34.eu-west-3.compute.internal --- src/backend/utils/misc/postgresql.conf.sample | 1 - 1 file changed, 1 deletion(-) (limited to 'src/backend/utils/misc/postgresql.conf.sample') diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample index 5362ff80519..e771d87da1f 100644 --- a/src/backend/utils/misc/postgresql.conf.sample +++ b/src/backend/utils/misc/postgresql.conf.sample @@ -641,7 +641,6 @@ #track_counts = on #track_cost_delay_timing = off #track_io_timing = off -#track_wal_io_timing = off #track_functions = none # none, pl, all #stats_fetch_consistency = cache # cache, none, snapshot -- cgit v1.2.3