author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 16:57:14 +0300 | |
branch | RCL_3 |
changeset 23 | 26645d81f48d |
parent 0 | 08ec8eefde2f |
permissions | -rw-r--r-- |
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# 2007 March 24 |
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# |
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# The author disclaims copyright to this source code. In place of |
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# a legal notice, here is a blessing: |
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# |
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# May you do good and not evil. |
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# May you find forgiveness for yourself and forgive others. |
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# May you share freely, never taking more than you give. |
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# |
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#*********************************************************************** |
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# |
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# $Id: cache.test,v 1.4 2007/08/22 02:56:44 drh Exp $ |
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set testdir [file dirname $argv0] |
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source $testdir/tester.tcl |
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ifcapable {!pager_pragmas} { |
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finish_test |
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return |
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} |
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sqlite3_soft_heap_limit 0 |
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proc pager_cache_size {db} { |
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set bt [btree_from_db $db] |
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db_enter $db |
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array set stats [btree_pager_stats $bt] |
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db_leave $db |
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return $stats(page) |
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} |
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do_test cache-1.1 { |
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pager_cache_size db |
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} {0} |
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do_test cache-1.2 { |
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execsql { |
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PRAGMA auto_vacuum=OFF; |
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CREATE TABLE abc(a, b, c); |
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INSERT INTO abc VALUES(1, 2, 3); |
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} |
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pager_cache_size db |
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} {2} |
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# At one point, repeatedly locking and unlocking the cache was causing |
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# a resource leak of one page per repetition. The page wasn't actually |
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# leaked, but would not be reused until the pager-cache was full (i.e. |
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# 2000 pages by default). |
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# |
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# This tests that once the pager-cache is initialised, it can be locked |
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# and unlocked repeatedly without internally allocating any new pages. |
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# |
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set cache_size [pager_cache_size db] |
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for {set ii 0} {$ii < 10} {incr ii} { |
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do_test cache-1.3.$ii { |
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execsql {SELECT * FROM abc} |
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pager_cache_size db |
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} $::cache_size |
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} |
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sqlite3_soft_heap_limit $soft_limit |
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finish_test |