diff options
Diffstat (limited to 'src/backend/access/transam/xlog.c')
| -rw-r--r-- | src/backend/access/transam/xlog.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index 919314f8258..799fc739e18 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -134,6 +134,7 @@ int CommitSiblings = 5; /* # concurrent xacts needed to sleep */ int wal_retrieve_retry_interval = 5000; int max_slot_wal_keep_size_mb = -1; int wal_decode_buffer_size = 512 * 1024; +bool track_wal_io_timing = false; #ifdef WAL_DEBUG bool XLOG_DEBUG = false; @@ -2437,7 +2438,7 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible) /* * Measure I/O timing to write WAL data, for pg_stat_io. */ - start = pgstat_prepare_io_time(); + start = pgstat_prepare_io_time(track_wal_io_timing); pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE); written = pg_pwrite(openLogFile, from, nleft, startoffset); @@ -3248,7 +3249,7 @@ XLogFileInitInternal(XLogSegNo logsegno, TimeLineID logtli, errmsg("could not create file \"%s\": %m", tmppath))); /* Measure I/O timing when initializing segment */ - io_start = pgstat_prepare_io_time(); + io_start = pgstat_prepare_io_time(track_wal_io_timing); pgstat_report_wait_start(WAIT_EVENT_WAL_INIT_WRITE); save_errno = 0; @@ -3310,7 +3311,7 @@ XLogFileInitInternal(XLogSegNo logsegno, TimeLineID logtli, } /* Measure I/O timing when flushing segment */ - io_start = pgstat_prepare_io_time(); + io_start = pgstat_prepare_io_time(track_wal_io_timing); pgstat_report_wait_start(WAIT_EVENT_WAL_INIT_SYNC); if (pg_fsync(fd) != 0) @@ -8744,7 +8745,7 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli) /* * Measure I/O timing to sync the WAL file for pg_stat_io. */ - start = pgstat_prepare_io_time(); + start = pgstat_prepare_io_time(track_wal_io_timing); pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC); switch (wal_sync_method) |