Talos has detected a Firefox performance regression from push:
As author of one of the patches included in that push, we need your help to address this regression.
3% tp5n main_startup_fileio windows7-32 opt e10s stylo 88,761,893.33 -> 91,334,012.00
3% tp5n main_startup_fileio windows7-32 pgo e10s stylo 94,762,108.17 -> 97,418,048.00
You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=19038
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/Performance_sheriffing/Talos/Tests
For information on reproducing and debugging the regression, either on try or locally, see: https://wiki.mozilla.org/Performance_sheriffing/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/Performance_sheriffing/Talos/RegressionBugsHandling