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| author | dgrogan@chromium.org <dgrogan@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-05-10 03:02:41 +0000 |
|---|---|---|
| committer | dgrogan@chromium.org <dgrogan@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-05-10 03:02:41 +0000 |
| commit | 833225d94a0e76dfe49de08b9b088bed1bfd256d (patch) | |
| tree | 85e50566c574a3c9ed9c468811eefc3e7581f22d /tools | |
| parent | 2f2d6c30d9a28022847febc13d92d3073c294674 (diff) | |
| download | chromium_src-833225d94a0e76dfe49de08b9b088bed1bfd256d.zip chromium_src-833225d94a0e76dfe49de08b9b088bed1bfd256d.tar.gz chromium_src-833225d94a0e76dfe49de08b9b088bed1bfd256d.tar.bz2 | |
Check for and histogram one class of unsafe thread accesses in LevelDB.
This is where multiple threads may be using one FILE* handle. This patch doesn't
address two threads reading/writing the same file through different handles.
BUG=230154
Review URL: https://chromiumcodereview.appspot.com/14772024
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@199348 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/metrics/histograms/histograms.xml | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml index f53e7c5..bea1250 100644 --- a/tools/metrics/histograms/histograms.xml +++ b/tools/metrics/histograms/histograms.xml @@ -924,6 +924,14 @@ other types of suffix sets. </summary> </histogram> +<histogram name="LevelDBEnv.All.SafeThreadAccess" units="accesses"> + <summary> + Linux and CrOS use unlocked_stdio(3). If it is used unsafely, record it + here. If there is no record of unsafety after chrome 29 has been in the + stable channel for a few weeks then revert this change. + </summary> +</histogram> + <histogram name="LevelDBEnv.IDB.IOError" enum="LevelDBIOErrorMethods"> <summary> Methods where leveldb's Chromium environment has IO errors when being used |