Repair performance problem in SI segment manipulations: iterating

through MAXBACKENDS array entries used to be fine when MAXBACKENDS = 64.
It's not so cool with MAXBACKENDS = 1024 (or more!), especially not in a
frequently-used routine like SIDelExpiredDataEntries.  Repair by making
procState array size be the soft MaxBackends limit rather than the hard
limit, and by converting SIGetProcStateLimit() to a macro.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/backend/storage/ipc/ipci.c b/src/backend/storage/ipc/ipci.c
index 6fedbcf85af..fd0b53d9a61 100644
--- a/src/backend/storage/ipc/ipci.c
+++ b/src/backend/storage/ipc/ipci.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipci.c,v 1.24 1999/05/25 16:11:09 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/storage/ipc/ipci.c,v 1.25 1999/05/28 17:03:29 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -108,7 +108,7 @@ CreateSharedMemoryAndSemaphores(IPCKey key, int maxBackends)
 	 */
 	InitProcGlobal(key, maxBackends);
 
-	CreateSharedInvalidationState(key);
+	CreateSharedInvalidationState(key, maxBackends);
 }