From 0f8fc35a5a9824d4f50edef49ce000f104ca5e74 Mon Sep 17 00:00:00 2001
From: Tom Lane
Date: Mon, 25 Sep 2006 22:12:24 +0000
Subject: Increase default value of effective_cache_size to 128MB, per
 discussion.

---
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 src/include/optimizer/cost.h                  | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 40a205a501a..13408899dc3 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -195,7 +195,7 @@
 #cpu_tuple_cost = 0.01			# same scale as above
 #cpu_index_tuple_cost = 0.005		# same scale as above
 #cpu_operator_cost = 0.0025		# same scale as above
-#effective_cache_size = 8000kB
+#effective_cache_size = 128MB
 
 # - Genetic Query Optimizer -
 
diff --git a/src/include/optimizer/cost.h b/src/include/optimizer/cost.h
index e0250f5f396..ce61e261a95 100644
--- a/src/include/optimizer/cost.h
+++ b/src/include/optimizer/cost.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.80 2006/09/19 22:49:53 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.81 2006/09/25 22:12:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -27,7 +27,7 @@
 #define DEFAULT_CPU_INDEX_TUPLE_COST 0.005
 #define DEFAULT_CPU_OPERATOR_COST  0.0025
 
-#define DEFAULT_EFFECTIVE_CACHE_SIZE  1000	/* measured in pages */
+#define DEFAULT_EFFECTIVE_CACHE_SIZE  16384	/* measured in pages */
 
 
 /*
-- 
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