1571387 - 20.65% raptor-tp6-binast-instagram-firefox fcp (macosx1014-64-shippable) regression on push a157f7b9da3dc61f2ddc63abda6d921dd16c0e89 (Mon July 29 2019)

Status: RESOLVED INVALID

(Core :: XPCOM, defect)

Description

[Marian Raiciof [:marauder]]

Raptor has detected a Firefox performance regression from push:

https://hg.mozilla.org/integration/autoland/pushloghtml?changeset=a157f7b9da3dc61f2ddc63abda6d921dd16c0e89

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

Regressions:

21% raptor-tp6-binast-instagram-firefox fcp macosx1014-64-shippable opt 257.94 -> 311.21

You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=22191

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 Raptor jobs in a pushlog format.

To learn more about the regressing test(s) or reproducing them, please see: https://wiki.mozilla.org/Performance_sheriffing/Raptor

*** 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/Performance_sheriffing/Talos/RegressionBugsHandling

Comment 1

[Nathan Froyd [:froydnj]]

This commit can't possibly be responsible for the regression, since it's not even enabled on shippable builds. Are you sure you have the right commit range?

Comment 2

[Marian Raiciof [:marauder]]

I did a new round of backfill and retrigger for data points after the a157f7b9da3dc61f2ddc63abda6d921dd16c0e89 changeset.
The data points before a157f7b9da3dc61f2ddc63abda6d921dd16c0e89 are displayed in the graph.
I'll come back with an update after the backfill finishes.

Comment 3

[Marian Raiciof [:marauder]]

I marked the alert as invalid. I will close this ticket.
Thanks!