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* Disk cache: Set up a new experiment on the dev channel.rvargas@google.com2009-04-221-2/+30
| | | | | | | | | Enable the new eviction algorithm for 10% of the current users on the dev channel. Review URL: http://codereview.chromium.org/79064 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@14229 0039d316-1c4b-4281-b951-d872f2087c98
* Disk cache: Modify the unit tests so that they test bothrvargas@google.com2009-04-171-1/+0
| | | | | | | | eviction algorithms without having to recompile the code. Review URL: http://codereview.chromium.org/79031 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@13909 0039d316-1c4b-4281-b951-d872f2087c98
* Disk cache: Finish the current experiment.rvargas@google.com2009-04-101-1/+1
| | | | | | Review URL: http://codereview.chromium.org/67046 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@13535 0039d316-1c4b-4281-b951-d872f2087c98
* Disk Cache: Second pass (and final) to allow multiple instancesrvargas@google.com2009-03-271-11/+5
| | | | | | | | | | | | | | | | | | | of BackendImpl. This cl takes care of all the histograms on the disk cache. Most of them have to be splitted in three so that we get separate data from different cache types. There are a few places where the complexity of splitting the histogram is not worth it so we just keep either all data together (if it makes sense), or just ignore data for some types of caches. note: Having multiple versions of a histogram but only one "active" for a given client is not the same as having multiple histograms working at the same time for different objects. Review URL: http://codereview.chromium.org/42682 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@12692 0039d316-1c4b-4281-b951-d872f2087c98
* Disk cache: First pass to make it possible to havervargas@google.com2009-03-251-3/+3
| | | | | | | | | | | | multiple instances of BackendImpl. We need multiple objects to be able to support media files on the cache. After this change, histograms will be the only thing that get messed up by multiple disk caches. Review URL: http://codereview.chromium.org/49027 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@12520 0039d316-1c4b-4281-b951-d872f2087c98
* Disk cache: fix the report of first-eviction data to include onlyrvargas@google.com2009-03-251-1/+1
| | | | | | | | | | new users (so the file format has a valid create_time) Histograms from dev channel (171) are incorrect. Review URL: http://codereview.chromium.org/49032 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@12505 0039d316-1c4b-4281-b951-d872f2087c98
* Add a new histogram macro to replace a few explicit calls.rvargas@google.com2009-03-241-3/+6
| | | | | | | | There is no real change in functionality. Review URL: http://codereview.chromium.org/42514 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@12400 0039d316-1c4b-4281-b951-d872f2087c98
* Disk cache: More instrumentation for the cache.rvargas@google.com2009-03-201-5/+13
| | | | | | | | | | | | | | Now we separate data between before and after the cache is full. Also, reduce the rate at which a particular client sends data to be only once a week. The effect is that the histogram data will only have one value per client, and the same client will not be "voting" on more than one version (release) at the same time. Review URL: http://codereview.chromium.org/50063 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@12218 0039d316-1c4b-4281-b951-d872f2087c98
* Disk cache: First implementation of TrimDeleted() and a fewrvargas@google.com2009-03-181-4/+57
| | | | | | | | | | other fixes related to the new eviction code. As before, almost everything is disabled by default. Review URL: http://codereview.chromium.org/48112 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@11995 0039d316-1c4b-4281-b951-d872f2087c98
* New disk cache eviction algorithm (partial implementation).rvargas@google.com2009-03-061-11/+248
| | | | | | | | | | | | | | | | | | | | | | | | Disabled by a #def. When enabled, file format 2.1 is used, with a possible update from ver 2.0. If a version with this code disabled is run after the upgrade, it will just discard the file and go back to 2.0. We now put some of those extra list to use! Entries are separated into various lists depending on how often are used, and we keep track of previously evicted entries. If the new algorithm is not enabled, most of the code just goes through a different path (with the old code instead of the new one). One notable exception is OpenFollowingEntry, used to enumerate the entries on the cache; the code changed significantly to support the new version of the "cache iterator", but functionally should do the same as the current code. Review URL: http://codereview.chromium.org/27345 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@11145 0039d316-1c4b-4281-b951-d872f2087c98
* Use string for Histogram names since these are all ASCII anyway.dsh@google.com2009-02-241-3/+3
| | | | | | | | Wide-character literals cause problems between platforms. Review URL: http://codereview.chromium.org/28046 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@10276 0039d316-1c4b-4281-b951-d872f2087c98
* Disk cache: move eviction code to a separate file.rvargas@google.com2008-12-181-0/+122
There should be no change in behavior with this CL. Review URL: http://codereview.chromium.org/14183 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@7190 0039d316-1c4b-4281-b951-d872f2087c98
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