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| author | glider@chromium.org <glider@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-06-20 15:09:06 +0000 |
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| committer | glider@chromium.org <glider@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-06-20 15:09:06 +0000 |
| commit | 883555525bf098ac9b9f315ca421340758d9c41c (patch) | |
| tree | 56a59d356d4ddc9a69b1425af145366dbdfa47a6 /third_party | |
| parent | ef0d50ebfaa5e60b8a5d06e7222618c0aa48b000 (diff) | |
| download | chromium_src-883555525bf098ac9b9f315ca421340758d9c41c.zip chromium_src-883555525bf098ac9b9f315ca421340758d9c41c.tar.gz chromium_src-883555525bf098ac9b9f315ca421340758d9c41c.tar.bz2 | |
Decrease the kHashbits to 12 effectively restoring the pre-r89459 size
of the page heap.
TBR=antonm
TEST=VM usage drops on the perf bots
Review URL: http://codereview.chromium.org/7200028
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@89670 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'third_party')
| -rw-r--r-- | third_party/tcmalloc/chromium/src/packed-cache-inl.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/third_party/tcmalloc/chromium/src/packed-cache-inl.h b/third_party/tcmalloc/chromium/src/packed-cache-inl.h index 77f42b6..36a24a3 100644 --- a/third_party/tcmalloc/chromium/src/packed-cache-inl.h +++ b/third_party/tcmalloc/chromium/src/packed-cache-inl.h @@ -139,7 +139,9 @@ class PackedCache { // Decrease the size map cache if running in the small memory mode. static const int kHashbits = 12; #else - static const int kHashbits = 16; + // We don't want the hash map to occupy 512K memory at Chromium, so + // kHashbits is decreased from 16 to 12. + static const int kHashbits = 12; #endif static const int kValuebits = 7; static const bool kUseWholeKeys = kKeybits + kValuebits <= 8 * sizeof(T); |