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| author | rmcilroy@chromium.org <rmcilroy@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-06-20 22:50:12 +0000 |
|---|---|---|
| committer | rmcilroy@chromium.org <rmcilroy@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-06-20 22:50:12 +0000 |
| commit | b7e3342b5453e86aa299cf5dc2cd76a4c66e9167 (patch) | |
| tree | 7a6884d60520978197d67e39d1ce23aa885f07fc /third_party/sqlite/amalgamation | |
| parent | 0a91a3fa17b2a9f9a67fdc864aa273cb0f5e834f (diff) | |
| download | chromium_src-b7e3342b5453e86aa299cf5dc2cd76a4c66e9167.zip chromium_src-b7e3342b5453e86aa299cf5dc2cd76a4c66e9167.tar.gz chromium_src-b7e3342b5453e86aa299cf5dc2cd76a4c66e9167.tar.bz2 | |
Use seperate page caches pools for each sqlite connection.
Due to multiple different subsystems using sqlite, the shared global page
cache policy does not suite our use-cases on Chrome very well. This CL
enables a compile time flag to be set to disable shared cache pools.
BUG=243769
Review URL: https://chromiumcodereview.appspot.com/17413004
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@207619 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'third_party/sqlite/amalgamation')
| -rw-r--r-- | third_party/sqlite/amalgamation/sqlite3.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/third_party/sqlite/amalgamation/sqlite3.c b/third_party/sqlite/amalgamation/sqlite3.c index 9f49db1..a457c09 100644 --- a/third_party/sqlite/amalgamation/sqlite3.c +++ b/third_party/sqlite/amalgamation/sqlite3.c @@ -35465,10 +35465,12 @@ static sqlite3_pcache *pcache1Create(int szPage, int bPurgeable){ int sz; /* Bytes of memory required to allocate the new cache */ /* - ** The seperateCache variable is true if each PCache has its own private + ** The separateCache variable is true if each PCache has its own private ** PGroup. In other words, separateCache is true for mode (1) where no ** mutexing is required. ** + ** * Always use separate caches (mode-1) if SQLITE_SEPARATE_CACHE_POOLS + ** ** * Always use a unified cache (mode-2) if ENABLE_MEMORY_MANAGEMENT ** ** * Always use a unified cache in single-threaded applications @@ -35476,7 +35478,9 @@ static sqlite3_pcache *pcache1Create(int szPage, int bPurgeable){ ** * Otherwise (if multi-threaded and ENABLE_MEMORY_MANAGEMENT is off) ** use separate caches (mode-1) */ -#if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) || SQLITE_THREADSAFE==0 +#ifdef SQLITE_SEPARATE_CACHE_POOLS + const int separateCache = 1; +#elif defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) || SQLITE_THREADSAFE==0 const int separateCache = 0; #else int separateCache = sqlite3GlobalConfig.bCoreMutex>0; |