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→Stability report & metrics
==Stability report & metrics==
* b3 has about 620K users. The crash rate for 5.0 overall is about 1.5 crashes per 100 ADU.
* Kairo has a great table put together with some breakdowns - http://test.kairo.at/socorro/2011-06-05.buildcrashes.html
* 5.0 regressions
** There were a few top crashes we noted as regressions in 5.0. They were all tracked.
** We determined that these related to turning on PGO in March.
** What we did learn was that this caused a regression in a few key signatures. We turned off PGO for b3 and discovered validated that we saw less of these signatures but an increase in a more generic signature EnterMethodJIT so we think the crashes just shifted.
** We don't know if there is some net increase in EnterMethodJIT crashes as a result - note, this is the top #5 crash on 4.0.1. Addressing this type of crash is likely a many month initiative.
** The crashkill team went through all the tracking firefox_5 crashes this morning and removed the tracking flag for many of them.
* At this time there are no big top crashers we are concerned about.
* Possible red flag - appears to be an increase in the number of plugin hangs but we need more data to validate this.
==Beta feedback==
