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| author | Michael Paquier <michael@paquier.xyz> | 2018-07-02 22:19:46 +0900 |
|---|---|---|
| committer | Michael Paquier <michael@paquier.xyz> | 2018-07-02 22:19:46 +0900 |
| commit | c55de5e5123ce58ee19a47c08425949599285041 (patch) | |
| tree | a2e4b6b8c3506959440fc2c2b284c2bdd251d4d1 /src/backend/access/transam/xlog.c | |
| parent | c072e80337e6b1e829141c9cd8ba0bc585f5c2ab (diff) | |
| download | postgresql-c55de5e5123ce58ee19a47c08425949599285041.tar.gz postgresql-c55de5e5123ce58ee19a47c08425949599285041.zip | |
Add wait event for fsync of WAL segments
This has been visibly a forgotten spot in the first implementation of
wait events for I/O added by 249cf07, and what has been missing is a
fsync call for WAL segments which is a wrapper reacting on the value of
GUC wal_sync_method.
Reported-by: Konstantin Knizhnik
Author: Konstantin Knizhnik
Reviewed-by: Craig Ringer, Michael Paquier
Discussion: https://postgr.es/m/4a243897-0ad8-f471-aa40-242591f2476e@postgrespro.ru
Diffstat (limited to 'src/backend/access/transam/xlog.c')
| -rw-r--r-- | src/backend/access/transam/xlog.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index dcfef365916..09816578012 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -10156,6 +10156,7 @@ assign_xlog_sync_method(int new_sync_method, void *extra) void issue_xlog_fsync(int fd, XLogSegNo segno) { + pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (sync_method) { case SYNC_METHOD_FSYNC: @@ -10191,6 +10192,7 @@ issue_xlog_fsync(int fd, XLogSegNo segno) elog(PANIC, "unrecognized wal_sync_method: %d", sync_method); break; } + pgstat_report_wait_end(); } /* |