database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-29 10:41:53 +03:00
Code Activity

Add wait event for fsync of WAL segments

Browse Source 
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
This commit is contained in:
Michael Paquier
2018-07-02 22:19:46 +09:00
parent c072e80337
commit c55de5e512
4 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/backend/access/transam/xlog.c
View File

@ -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();
}
/*