diff options
| author | Robert Haas <rhaas@postgresql.org> | 2017-04-07 13:41:47 -0400 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2017-04-07 13:41:47 -0400 |
| commit | d4116a771925379c33cf4c6634ca620ed08b551d (patch) | |
| tree | 27f53d0c2833c66a78809bdb2db57c23d20cb0b9 /src/backend/storage/ipc/procarray.c | |
| parent | dbb2a931478a397a2b655eb77e8be8c1ca136f63 (diff) | |
Add ProcArrayGroupUpdate wait event.
Discussion: http://postgr.es/m/CA+TgmobgWHcXDcChX2+BqJDk2dkPVF85ZrJFhUyHHQmw8diTpA@mail.gmail.com
Diffstat (limited to 'src/backend/storage/ipc/procarray.c')
| -rw-r--r-- | src/backend/storage/ipc/procarray.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/storage/ipc/procarray.c b/src/backend/storage/ipc/procarray.c index fb39bdc2f59..ebf6a929239 100644 --- a/src/backend/storage/ipc/procarray.c +++ b/src/backend/storage/ipc/procarray.c @@ -53,6 +53,7 @@ #include "access/xlog.h" #include "catalog/catalog.h" #include "miscadmin.h" +#include "pgstat.h" #include "storage/proc.h" #include "storage/procarray.h" #include "storage/spin.h" @@ -513,6 +514,7 @@ ProcArrayGroupClearXid(PGPROC *proc, TransactionId latestXid) int extraWaits = 0; /* Sleep until the leader clears our XID. */ + pgstat_report_wait_start(WAIT_EVENT_PROCARRAY_GROUP_UPDATE); for (;;) { /* acts as a read barrier */ @@ -521,6 +523,7 @@ ProcArrayGroupClearXid(PGPROC *proc, TransactionId latestXid) break; extraWaits++; } + pgstat_report_wait_end(); Assert(pg_atomic_read_u32(&proc->procArrayGroupNext) == INVALID_PGPROCNO); |