diff options
Diffstat (limited to 'src/backend/utils/activity/pgstat_wal.c')
| -rw-r--r-- | src/backend/utils/activity/pgstat_wal.c | 24 |
1 files changed, 2 insertions, 22 deletions
diff --git a/src/backend/utils/activity/pgstat_wal.c b/src/backend/utils/activity/pgstat_wal.c index c1ca65eb991..4dc41a4a590 100644 --- a/src/backend/utils/activity/pgstat_wal.c +++ b/src/backend/utils/activity/pgstat_wal.c @@ -21,8 +21,6 @@ #include "utils/pgstat_internal.h" -PgStat_PendingWalStats PendingWalStats = {0}; - /* * WAL usage counters saved from pgWalUsage at the previous call to * pgstat_report_wal(). This is used to calculate how much WAL usage @@ -118,17 +116,10 @@ pgstat_wal_flush_cb(bool nowait) #define WALSTAT_ACC(fld, var_to_add) \ (stats_shmem->stats.fld += var_to_add.fld) -#define WALSTAT_ACC_INSTR_TIME(fld) \ - (stats_shmem->stats.fld += INSTR_TIME_GET_MICROSEC(PendingWalStats.fld)) WALSTAT_ACC(wal_records, wal_usage_diff); WALSTAT_ACC(wal_fpi, wal_usage_diff); WALSTAT_ACC(wal_bytes, wal_usage_diff); WALSTAT_ACC(wal_buffers_full, wal_usage_diff); - WALSTAT_ACC(wal_write, PendingWalStats); - WALSTAT_ACC(wal_sync, PendingWalStats); - WALSTAT_ACC_INSTR_TIME(wal_write_time); - WALSTAT_ACC_INSTR_TIME(wal_sync_time); -#undef WALSTAT_ACC_INSTR_TIME #undef WALSTAT_ACC LWLockRelease(&stats_shmem->lock); @@ -138,11 +129,6 @@ pgstat_wal_flush_cb(bool nowait) */ prevWalUsage = pgWalUsage; - /* - * Clear out the statistics buffer, so it can be re-used. - */ - MemSet(&PendingWalStats, 0, sizeof(PendingWalStats)); - return false; } @@ -158,18 +144,12 @@ pgstat_wal_init_backend_cb(void) } /* - * To determine whether any WAL activity has occurred since last time, not - * only the number of generated WAL records but also the numbers of WAL - * writes and syncs need to be checked. Because even transaction that - * generates no WAL records can write or sync WAL data when flushing the - * data pages. + * To determine whether WAL usage happened. */ bool pgstat_wal_have_pending_cb(void) { - return pgWalUsage.wal_records != prevWalUsage.wal_records || - PendingWalStats.wal_write != 0 || - PendingWalStats.wal_sync != 0; + return pgWalUsage.wal_records != prevWalUsage.wal_records; } void |