diff options
Diffstat (limited to 'src/backend/access/transam/xact.c')
| -rw-r--r-- | src/backend/access/transam/xact.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/src/backend/access/transam/xact.c b/src/backend/access/transam/xact.c index 9172f121d1a..37eee5ebfd7 100644 --- a/src/backend/access/transam/xact.c +++ b/src/backend/access/transam/xact.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/access/transam/xact.c,v 1.96 2001/01/24 19:42:51 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/access/transam/xact.c,v 1.97 2001/02/18 04:50:43 tgl Exp $ * * NOTES * Transaction aborts can now occur two ways: @@ -221,7 +221,7 @@ int XactIsoLevel; #include "access/xlogutils.h" -int CommitDelay = 5; /* 1/200000 sec */ +int CommitDelay = 0; /* in microseconds */ static void (*_RollbackFunc)(void*) = NULL; static void *_RollbackData = NULL; @@ -667,7 +667,6 @@ RecordTransactionCommit() { XLogRecData rdata; xl_xact_commit xlrec; - struct timeval delay; XLogRecPtr recptr; BufmgrCommit(); @@ -686,11 +685,20 @@ RecordTransactionCommit() /* * Sleep before commit! So we can flush more than one - * commit records per single fsync. + * commit records per single fsync. (The idea is some other + * backend may do the XLogFlush while we're sleeping. This + * needs work however, because on most Unixen, the minimum + * select() delay is 10msec or more, which is way too long.) */ - delay.tv_sec = 0; - delay.tv_usec = CommitDelay; - (void) select(0, NULL, NULL, NULL, &delay); + if (CommitDelay > 0) + { + struct timeval delay; + + delay.tv_sec = 0; + delay.tv_usec = CommitDelay; + (void) select(0, NULL, NULL, NULL, &delay); + } + XLogFlush(recptr); MyLastRecPtr.xrecoff = 0; |