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Author SHA1 Message Date
Luigi Semenzato e5c7eb1d13 metrics_daemon: store persistent counters in /var/lib, not /var/log. 
BUG=chromium:356781
TEST=manual

Change-Id: I7d36876347bdbbe329e24adf3345c2ade97be5fe
Reviewed-on: https://chromium-review.googlesource.com/195310
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
 2014-04-18 03:08:11 +00:00
Luigi Semenzato a5f4fe6b98 metrics_daemon: fix harmless confusion in writing persistent integers 
As the subject says, I don't think this can change any of the
behavior, but the argument to Write() was ignored and merely
confusing.

BUG=chromium:339588
TEST=ran unit tests

Change-Id: Ie6d59e6879a734523978c21d66170721e0f499c7
Reviewed-on: https://chromium-review.googlesource.com/194919
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Reviewed-by: Daniel Erat <derat@chromium.org>
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
 2014-04-16 17:14:47 +00:00
Luigi Semenzato 2fd51cc42d metrics: refactor counters 
The metrics daemon had counter classes that represented
persistent, tagged values, and UMA stats.  To create some
derived UMA stats we need to separate persistency and UMA stats,
and the tagging doesn't help either.

This rewrite is supposed to keep the same functionality.

BUG=chromium:339588
TEST=ran and checked a few histograms
BRANCH=none

Change-Id: Ia1121ab2db391d71edffab9f52afe29ce17686ba
Reviewed-on: https://chromium-review.googlesource.com/188082
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
 2014-03-14 19:42:50 +00:00