From: drh <drh@noemail.net>
Date: Tue, 18 Jan 2011 17:03:26 +0000 (+0000)
Subject: Do not use mutexes in the pcache implementation unless
X-Git-Tag: version-3.7.5~27
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bee29f4ac1a82912b65e2cb5f5d9e49eaceb6352;p=thirdparty%2Fsqlite.git

Do not use mutexes in the pcache implementation unless
SQLITE_ENABLE_MEMORY_MANAGMENT is defined.  This is a performance enhancement.
A side effect is that pcaches will not steal pages from one another unless
ENABLE_MEMORY_MANAGEMENT is set, or unless SQLITE_THREADSAFE=0.

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---

bee29f4ac1a82912b65e2cb5f5d9e49eaceb6352
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- D 2011-01-17T18:30:10.560
 -C Get\sall\stest\scases\sworking\swith\sthe\smutex-free-pcache\simplementation.
 -D 2011-01-18T16:13:27.224
++C Do\snot\suse\smutexes\sin\sthe\spcache\simplementation\sunless\nSQLITE_ENABLE_MEMORY_MANAGMENT\sis\sdefined.\s\sThis\sis\sa\sperformance\senhancement.\nA\sside\seffect\sis\sthat\spcaches\swill\snot\ssteal\spages\sfrom\sone\sanother\sunless\nENABLE_MEMORY_MANAGEMENT\sis\sset,\sor\sunless\sSQLITE_THREADSAFE=0.
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diff --cc manifest.uuid
index 2bfaca6792,f27c91d65c..08777730f0
--- a/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
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