4.26 - 37.64% raptor-tp6 (android-hw-g5-7-0-arm7-api-16, android-hw-p2-8-0-android-aarch64, android-hw-p2-8-0-arm7-api-16, linux64, windows7-32) regression on push c27aa490f40b04838c41a93464a6691d2ef9352e (Tue Feb 12 2019)
Categories
(Core :: Web Painting, defect)
Tracking
()
People
(Reporter: igoldan, Unassigned)
References
Details
(Keywords: perf, regression)
Raptor 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.
Regressions:
38% raptor-tp6-yandex-firefox fcp windows7-32 opt 77.77 -> 107.04
21% raptor-tp6-bing-firefox fcp windows7-32 opt 77.50 -> 93.42
18% raptor-tp6m-google-geckoview fcp android-hw-p2-8-0-android-aarch64 opt 218.69 -> 258.08
18% raptor-tp6m-google-geckoview fcp android-hw-g5-7-0-arm7-api-16 opt 389.83 -> 459.67
13% raptor-tp6m-google-geckoview fcp android-hw-p2-8-0-arm7-api-16 opt 220.04 -> 248.12
10% raptor-tp6-sheets-firefox fcp linux64 opt 271.60 -> 297.71
9% raptor-tp6-reddit-firefox fcp windows7-32 pgo 258.52 -> 280.83
8% raptor-tp6m-youtube-geckoview fcp android-hw-g5-7-0-arm7-api-16 opt 454.19 -> 491.62
8% raptor-tp6-bing-firefox windows7-32 opt 73.27 -> 78.79
6% raptor-tp6-yandex-firefox windows7-32 opt 151.47 -> 160.85
6% raptor-tp6-yandex-firefox windows7-32 opt 150.98 -> 159.85
6% raptor-tp6-yahoo-news-firefox fcp windows7-32 pgo 234.71 -> 248.46
4% raptor-tp6-slides-firefox fcp linux64 opt 805.10 -> 840.71
4% raptor-tp6-slides-firefox fcp linux64 opt 808.75 -> 843.17
You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=19325
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
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Reporter | |
Updated•6 years ago
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Reporter | |
Updated•6 years ago
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Reporter | |
Comment 1•6 years ago
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These are the Gecko profiles for Yandex on Windows 7 (OPT builds):
For fcp Sheets on Linux 64bit (OPT builds):
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Reporter | |
Comment 2•6 years ago
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The regression list is still growing. comment 0 contains only the 1st alerts that showed up.
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Comment 3•6 years ago
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Bug 1506976 changes what FCP measures, so it will affect all tests that use FCP numbers. The patch doesn't actually make Firefox slower. So these regressions are expected.
(In reply to Ionuț Goldan [:igoldan], Performance Sheriffing from comment #1)
These are the Gecko profiles for Yandex on Windows 7 (OPT builds):
Thanks for these profiles! Here are two views into them, constrained to the FCP marker:
before: https://perfht.ml/2X2mmn6
after: https://perfht.ml/2WZtUaq
These profiles show exactly what I would expect: In the "before" profile, FCP stops in the middle of a DisplayList marker, and in the "after" profile, FCP also includes the rasterization of the paint, the wait for the next vsync, and the composite.
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Reporter | |
Updated•6 years ago
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Description
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