From 887a7c61f630b743f12a06b859ac1d03d2fb2bb9 Mon Sep 17 00:00:00 2001
From: Tom Lane
Date: Tue, 6 Dec 2005 23:08:34 +0000
Subject: Get rid of slru.c's hardwired insistence on a fixed number of slots
 per SLRU area.  The number of slots is still a compile-time constant (someday
 we might want to change that), but at least it's a different constant for
 each SLRU area.  Increase number of subtrans buffers to 32 based on
 experimentation with a heavily subtrans-bashing test case, and increase
 number of multixact member buffers to 16, since it's obviously silly for it
 not to be at least twice the number of multixact offset buffers.

---
 src/include/access/clog.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/include/access/clog.h')

diff --git a/src/include/access/clog.h b/src/include/access/clog.h
index f04eb02a58d..3eda52a12ab 100644
--- a/src/include/access/clog.h
+++ b/src/include/access/clog.h
@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/access/clog.h,v 1.14 2005/08/20 23:26:29 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/access/clog.h,v 1.15 2005/12/06 23:08:34 tgl Exp $
  */
 #ifndef CLOG_H
 #define CLOG_H
@@ -28,6 +28,10 @@ typedef int XidStatus;
 #define TRANSACTION_STATUS_SUB_COMMITTED	0x03
 
 
+/* Number of SLRU buffers to use for clog */
+#define NUM_CLOG_BUFFERS	8
+
+
 extern void TransactionIdSetStatus(TransactionId xid, XidStatus status);
 extern XidStatus TransactionIdGetStatus(TransactionId xid);
 
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