Ionuț Goldan [:igoldan] Reporter
	Description • 7 years ago

Talos has detected a Firefox performance regression from push:

https://hg.mozilla.org/integration/autoland/pushloghtml?changeset=ce5d0cb837b1505eca8869bc5802ed6ec879c8ed

As author of one of the patches included in that push, we need your help to address this regression.

Regressions:

  3%  tp5o Main_RSS linux64 opt e10s     185,012,541.53 -> 190,033,893.25
  3%  tp5o_webext Main_RSS osx-10-10 opt e10s348,659,072.67 -> 357,885,314.01
  2%  tp5o_webext Main_RSS linux64 opt e10s188,145,486.78 -> 192,391,241.03


You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=9000

On the page above you can see an alert for each affected platform as well as a link to a graph showing the history of scores for this test. There is also a link to a treeherder page showing the Talos jobs in a pushlog format.

To learn more about the regressing test(s), please see: https://wiki.mozilla.org/Buildbot/Talos/Tests

For information on reproducing and debugging the regression, either on try or locally, see: https://wiki.mozilla.org/Buildbot/Talos/Running

*** Please let us know your plans within 3 business days, or the offending patch(es) will be backed out! ***

Our wiki page outlines the common responses and expectations: https://wiki.mozilla.org/Buildbot/Talos/RegressionBugsHandling

	Ionuț Goldan [:igoldan] Reporter
	Comment 1 • 7 years ago

Jared, I see you are the owner of bug 1392157. This looks like it's happening on all platforms, including Windows. I'll update the alert list once the retriggers return.
Can you please take a look over these? Thanks!

	Mike Conley (:mconley) (:⚙️)
	Comment 2 • 7 years ago

Hey igoldan, thanks for filing.

We cleared this with erahm before landing - there's no regression on AWSY, and we feel more confident about those memory measurements than the ones from Talos.