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| author | rvargas@google.com <rvargas@google.com@0039d316-1c4b-4281-b951-d872f2087c98> | 2008-12-11 23:49:43 +0000 |
|---|---|---|
| committer | rvargas@google.com <rvargas@google.com@0039d316-1c4b-4281-b951-d872f2087c98> | 2008-12-11 23:49:43 +0000 |
| commit | 763ebe7adfd2aa850f94862b49ee6d7371d0e22f (patch) | |
| tree | 687a82eaec0a9896698b1b8cbcdd999964fead42 /net/disk_cache/disk_format.h | |
| parent | 579f8970ea79d64a3d76c9201f28c9b0c8ed5862 (diff) | |
| download | chromium_src-763ebe7adfd2aa850f94862b49ee6d7371d0e22f.zip chromium_src-763ebe7adfd2aa850f94862b49ee6d7371d0e22f.tar.gz chromium_src-763ebe7adfd2aa850f94862b49ee6d7371d0e22f.tar.bz2 | |
Disk cache: Set up an experiment to measure the effect of
increasing the maximum cache size.
There will be three groups on the experiment, each group with
10% of the users (Dev Channel). Each group will have the max
cache size increased by a factor from 2 to 4 times the current
size, and we'll measure the age of evicted entries.
I'm also adding a few metrics of reliability, to detect how
often we're not getting to do proper cleanup.
Review URL: http://codereview.chromium.org/14013
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@6847 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'net/disk_cache/disk_format.h')
| -rw-r--r-- | net/disk_cache/disk_format.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/disk_cache/disk_format.h b/net/disk_cache/disk_format.h index 2e839a1..7dc2e7c 100644 --- a/net/disk_cache/disk_format.h +++ b/net/disk_cache/disk_format.h @@ -84,7 +84,9 @@ struct IndexHeader { int32 this_id; // Id for all entries being changed (dirty flag). CacheAddr stats; // Storage for usage data. int32 table_len; // Actual size of the table (0 == kIndexTablesize). - int32 pad[64]; + int32 crash; // Signals a previous crash. + int32 experiment; // Id of an ongoing test. + int32 pad[62]; LruData lru; // Eviction control data. IndexHeader() { memset(this, 0, sizeof(*this)); |