1587345 - 12.24 - 123.86% raptor-tp6-instagram-firefox / raptor-tp6-twitter-firefox / raptor-tp6-twitter-firefox loadtime (linux64-shippable) regression on push 2237ceb903a4f006b1e0be5d2be2264450d78ac2 (Fri October 4 2019)

Status: RESOLVED FIXED

(Core :: DOM: Service Workers, defect)

Description

[Marian Raiciof [:marauder]]

Raptor has detected a Firefox performance regression from push:

https://hg.mozilla.org/integration/autoland/pushloghtml?changeset=2237ceb903a4f006b1e0be5d2be2264450d78ac2

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

Regressions:

124% raptor-tp6-twitter-firefox loadtime linux64-shippable opt 362.42 -> 811.29
95% raptor-tp6-twitter-firefox loadtime linux64-shippable opt 362.40 -> 707.50
23% raptor-tp6-twitter-firefox linux64-shippable opt 316.09 -> 388.43
12% raptor-tp6-instagram-firefox linux64-shippable opt 242.57 -> 272.26

You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=23388

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/TestEngineering/Performance/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/TestEngineering/Performance/Talos/RegressionBugsHandling

Comment 1

[Marian Raiciof [:marauder]]

I'll mark this as fixed since it was backed out on 128dc44577c6c966ec29221fe05c69f6a2ca70c7
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=efee6c0dae4b0b1dcf2b39c6e4b4a992f8b30bda&tochange=128dc44577c6c966ec29221fe05c69f6a2ca70c7
and the graph returned to normal.