I’m not sure if this was resolved prior to the results, but this OS-wide 
performance bug was open for a couple weeks at least:

https://bugzilla.mozilla.org/show_bug.cgi?id=1204837 
<https://bugzilla.mozilla.org/show_bug.cgi?id=1204837>

-Justin


> On Oct 2, 2015, at 4:29 PM, [email protected] wrote:
> 
> Eli,
> 
> I have to say that I'm surprised by the results, it seems that we have 
> regressions in almost all apps.
> I'm wondering if there's a chance that it's in Gecko?
> 
> Another litmus test for me is the FM app. From what I know there were very, 
> very little changes to the app over the last couple releases and the only 
> significant change was landed by my team a couple months ago and I did 
> extensive performance testing locally and was monitoring raptor dashboard and 
> the results were actually an improvement.
> 
> Because of how little activity there was between 2.2 and 2.5 I can actually 
> revert this single change and see if there's any underlying trend that 
> affects all apps (and maybe Template app is not affected because it doesn't 
> load any JS, CSS etc.).
> 
> I landed a lot of small optimizations for apps and I always tested Flame-kk 
> on raptor and the results I got gave me an impression that we should see 
> startup perf improvement between 2.2 and 2.5.
> That's why I'm asking about a possibility that there's some platform 
> regression that impacts us.
> 
> Other proposal - could we launch FM 2.2 against Gecko from master and compare 
> to FM 2.2 against Gecko from 2.2?
> 
> zb.
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