1296571 - 223.05% a11yr (windows8-64) regression on push d84b4dd26a403675c8059e5d073ebc65d5fc07eb (Thu Aug 18 2016)

Status: RESOLVED FIXED

(Core :: Disability Access APIs, defect)

Description

[Joel Maher ( :jmaher ) (UTC -8)]

Talos has detected a Firefox performance regression from push d84b4dd26a403675c8059e5d073ebc65d5fc07eb. As author of one of the patches included in that push, we need your help to address this regression.

Summary of tests that regressed:

  a11yr summary windows8-64 opt e10s: 1460.38 -> 4717.7 (223.05% worse)


You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=2543

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

Comment 1

[Joel Maher ( :jmaher ) (UTC -8)]

:aklotz, we discussed this yesterday when bug 1268544 was originally landed, it seems that is is expected and you will deal with it after everything works?

Comment 2

[(No longer employed by Mozilla) Aaron Klotz]

That is correct.

Comment 3

[Joel Maher ( :jmaher ) (UTC -8)]

thanks!

Comment 4

[Joel Maher ( :jmaher ) (UTC -8)]

:aklotz, is there an update on when we will get time to focus on the a11y talos test and how it behaves on windows?

Comment 5

[(No longer employed by Mozilla) Aaron Klotz]

Probably next week. I've been dealing with some correctness and stability issues that have been getting in the way of this.

Comment 7

[(No longer employed by Mozilla) Aaron Klotz]

a11yr scores are back down to previous levels with the landing of bug 1304449. Resolving.