1 # 2008 September 15 2 # 3 # The author disclaims copyright to this source code. In place of 4 # a legal notice, here is a blessing: 5 # 6 # May you do good and not evil. 7 # May you find forgiveness for yourself and forgive others. 8 # May you share freely, never taking more than you give. 9 # 10 #*********************************************************************** 11 # 12 # This file is focused on testing the pcache module. 13 # 14 # $Id: pcache2.test,v 1.5 2009/07/18 14:36:24 danielk1977 Exp $ 15 16 set testdir [file dirname $argv0] 17 source $testdir/tester.tcl 18 19 20 # Set up a pcache memory pool so that we can easily track how many 21 # pages are being used for cache. 22 # 23 do_test pcache2-1.1 { 24 db close 25 sqlite3_reset_auto_extension 26 sqlite3_shutdown 27 sqlite3_config_pagecache 6000 100 28 sqlite3_initialize 29 autoinstall_test_functions 30 sqlite3_status SQLITE_STATUS_PAGECACHE_USED 1 31 sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0 32 } {0 0 0} 33 34 # Open up two database connections to separate files. 35 # 36 do_test pcache2-1.2 { 37 file delete -force test.db test.db-journal 38 sqlite3 db test.db 39 db eval {PRAGMA cache_size=10} 40 lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 1 41 } {2} 42 do_test pcache2-1.3 { 43 file delete -force test2.db test2.db-journal 44 sqlite3 db2 test2.db 45 db2 eval {PRAGMA cache_size=50} 46 lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 1 47 } {4} 48 49 50 # Make lots of changes on the first connection. Verify that the 51 # page cache usage does not grow to consume the page space set aside 52 # for the second connection. 53 # 54 do_test pcache2-1.4 { 55 db eval { 56 CREATE TABLE t1(a,b); 57 CREATE TABLE t2(x,y); 58 INSERT INTO t1 VALUES(1, zeroblob(800)); 59 INSERT INTO t1 VALUES(2, zeroblob(800)); 60 INSERT INTO t2 SELECT * FROM t1; 61 INSERT INTO t1 SELECT x+2, y FROM t2; 62 INSERT INTO t2 SELECT a+10, b FROM t1; 63 INSERT INTO t1 SELECT x+10, y FROM t2; 64 INSERT INTO t2 SELECT a+100, b FROM t1; 65 INSERT INTO t1 SELECT x+100, y FROM t2; 66 INSERT INTO t2 SELECT a+1000, b FROM t1; 67 INSERT INTO t1 SELECT x+1000, y FROM t2; 68 } 69 sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0 70 } {0 13 13} 71 72 db close 73 catch {db2 close} 74 sqlite3_reset_auto_extension 75 sqlite3_shutdown 76 sqlite3_config_pagecache 0 0 77 sqlite3_initialize 78 autoinstall_test_functions 79 80 finish_test 81
