Simplify the pcache module by only recycling clean pages from 'other' caches. This commit causes errors in test files ioerr5.test and malloc5.test because they test recycling dirty pages from other caches. (CVS 5615)

FossilOrigin-Name: 9e511e161bcb077450d31fca5dd20c2557f103b3

test/memsubsys1.test

@@ -11,7 +11,7 @@
 #
 # This file contains tests of the memory allocation subsystem
 #
-# $Id: memsubsys1.test,v 1.10 2008/08/20 14:49:25 danielk1977 Exp $
+# $Id: memsubsys1.test,v 1.11 2008/08/26 18:05:48 danielk1977 Exp $
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
@@ -228,10 +228,11 @@ sqlite3_shutdown
 sqlite3_config_pagecache [expr 4096+$xtra_size] 24
 sqlite3_config_scratch 25000 1
 sqlite3_initialize
-pcache_global_max 15
 reset_highwater_marks
 build_test_db memsubsys1-7 {
   PRAGMA page_size=4096;
+  PRAGMA cache_size=10;
+  PRAGMA temp_store=memory;
 }
 #show_memstats
 do_test memsubsys1-7.3 {
@@ -251,7 +252,6 @@ do_test memsubsys1-7.6 {
 do_test memsubsys1-7.7 {
   set s_ovfl [lindex [sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 0] 2]
 } 0
-pcache_global_max 0
 
 db close
 sqlite3_shutdown

test/tkt2409.test

@@ -16,7 +16,7 @@
 # any statement other than a COMMIT, an I/O error is returned instead
 # of SQLITE_BUSY.
 #
-# $Id: tkt2409.test,v 1.4 2008/08/20 14:49:25 danielk1977 Exp $
+# $Id: tkt2409.test,v 1.5 2008/08/26 18:05:48 danielk1977 Exp $
 
 # Test Outline:
 #
@@ -79,8 +79,6 @@ proc unread_lock_db {} {
   }
 }
 
-pcache_global_max 10
-
 # Open the db handle used by [read_lock_db].
 #
 sqlite3 db2 test.db
@@ -223,8 +221,6 @@ do_test tkt2409-4.4 {
   catchsql { ROLLBACK }
 } {0 {}}
 
-pcache_global_max 0
-
 unread_lock_db
 db2 close
 unset -nocomplain t1