From 8bd4b89e240cc6488f5e1523202cc2d27e9970c0 Mon Sep 17 00:00:00 2001 From: Robert Haas Date: Fri, 17 Dec 2010 11:32:02 -0500 Subject: [PATCH] Try to save a kernel call in ResolveRecoveryConflictWithVirtualXIDs. If there's no work to be done, just exit quickly, before initialization. --- src/backend/storage/ipc/standby.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/backend/storage/ipc/standby.c b/src/backend/storage/ipc/standby.c index 4f209eab68..b659c32058 100644 --- a/src/backend/storage/ipc/standby.c +++ b/src/backend/storage/ipc/standby.c @@ -193,6 +193,10 @@ ResolveRecoveryConflictWithVirtualXIDs(VirtualTransactionId *waitlist, TimestampTz waitStart; char *new_status; + /* Fast exit, to avoid a kernel call if there's no work to be done. */ + if (!VirtualTransactionIdIsValid(*waitlist)) + return; + waitStart = GetCurrentTimestamp(); new_status = NULL; /* we haven't changed the ps display */ -- 2.40.0