Closed Bug 1347675 Opened 3 years ago Closed 3 years ago

17.01% tabpaint (windows7-32) regression on push 78b008fb7d12ac75b2ad06d06ab65e6bc4ae8bb5 (Tue Mar 14 2017)


(Testing :: Marionette, defect)

53 Branch
Not set


(Not tracked)



(Reporter: rwood, Assigned: ato)


(Keywords: perf, regression, talos-regression)

Talos has detected a Firefox performance regression from push 78b008fb7d12ac75b2ad06d06ab65e6bc4ae8bb5. As author of one of the patches included in that push, we need your help to address this regression.


 17%  tabpaint summary windows7-32 opt e10s     60.54 -> 70.84

You can find links to graphs and comparison views for each of the above tests at:

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:

For information on reproducing and debugging the regression, either on try or locally, see:

*** 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:
Component: Untriaged → Marionette
Product: Firefox → Testing
This change is just to an assert, I am really shocked that this would cause the issue. The change is in
Thanks for letting me know - apologies, I should have retriggered the talos jobs on the commits before and after (not just on the alerting one). Please disregard, closing as invalid.
No longer blocks: 1346783, 1340775
Closed: 3 years ago
Resolution: --- → INVALID
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