119.09 - 3.78% google-slides FirstVisualChange / twitter PerceptualSpeedIndex + 9 more (Linux, OSX, Windows) regression on Wed September 29 2021
Categories
(Core :: DOM: Content Processes, defect, P1)
Tracking
()
Tracking | Status | |
---|---|---|
firefox-esr78 | --- | unaffected |
firefox-esr91 | --- | unaffected |
firefox92 | --- | unaffected |
firefox93 | --- | unaffected |
firefox94 | + | fixed |
firefox95 | + | fixed |
People
(Reporter: alexandrui, Assigned: smaug)
References
(Regression)
Details
(Keywords: perf, perf-alert, regression)
Perfherder has detected a browsertime performance regression from push 8f2f2cfb962094db37c4a08ca10c181000699930. As author of one of the patches included in that push, we need your help to address this regression.
Regressions:
Ratio | Test | Platform | Options | Absolute values (old vs new) |
---|---|---|---|---|
119% | google-slides FirstVisualChange | macosx1015-64-shippable-qr | fission warm webrender | 366.67 -> 803.33 |
70% | fandom loadtime | macosx1015-64-shippable-qr | fission warm webrender | 522.50 -> 886.83 |
40% | google-slides SpeedIndex | macosx1015-64-shippable-qr | fission warm webrender | 689.79 -> 965.92 |
35% | google-slides PerceptualSpeedIndex | macosx1015-64-shippable-qr | fission warm webrender | 717.17 -> 971.00 |
12% | twitter ContentfulSpeedIndex | windows10-64-shippable-qr | fission warm webrender | 760.92 -> 849.25 |
11% | google-slides dcf | windows10-64-shippable-qr | fission warm webrender | 746.88 -> 831.33 |
10% | google-slides dcf | linux1804-64-shippable-qr | fission warm webrender | 776.02 -> 854.29 |
8% | twitter SpeedIndex | windows10-64-shippable-qr | fission warm webrender | 798.83 -> 863.75 |
5% | twitter LastVisualChange | windows10-64-shippable-qr | fission warm webrender | 1,396.62 -> 1,467.42 |
4% | google-slides PerceptualSpeedIndex | linux1804-64-shippable-qr | cold fission webrender | 1,017.83 -> 1,057.75 |
4% | twitter PerceptualSpeedIndex | windows10-64-shippable-qr | fission warm webrender | 571.46 -> 593.08 |
Improvements:
Ratio | Test | Platform | Options | Absolute values (old vs new) |
---|---|---|---|---|
69% | wikipedia fcp | linux1804-64-shippable-qr | fission warm webrender | 1,271.25 -> 393.12 |
52% | amazon fcp | macosx1014-64-shippable-qr | fission warm webrender | 583.12 -> 278.92 |
52% | amazon fcp | linux1804-64-shippable-qr | fission warm webrender | 447.58 -> 215.17 |
51% | amazon fcp | windows10-64-shippable-qr | fission warm webrender | 398.50 -> 194.42 |
50% | wikipedia loadtime | linux1804-64-shippable-qr | fission warm webrender | 1,474.17 -> 730.12 |
... | ... | ... | ... | ... |
3% | google-slides loadtime | windows10-64-shippable-qr | fission warm webrender | 1,207.88 -> 1,166.75 |
Details of the alert can be found in the alert summary, including links to graphs and comparisons for each of the affected tests. Please follow our guide to handling regression bugs and let us know your plans within 3 business days, or the offending patch(es) will be backed out in accordance with our regression policy.
For more information on performance sheriffing please see our FAQ.
Comment 1•3 years ago
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Sounds like this is the CI version of bug 1734046.
Updated•3 years ago
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Updated•3 years ago
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Comment 3•3 years ago
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Tentatively assigning to Randell because we discussed this regression in yesterday's Fission meeting. I resolved bug 1734046 as a duplicate in favor of this bug.
Updated•3 years ago
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Comment 4•3 years ago
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Resolving as fixed because Randell says Olli's imglib priority boost in bug 1734811 fixes this regression.
Updated•3 years ago
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Comment 5•2 years ago
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(In reply to Chris Peterson [:cpeterson] from comment #4)
Resolving as fixed because Randell says Olli's imglib priority boost in bug 1734811 fixes this regression.
Bug 1734811 comment 8 shows only a couple of improvements on Android (non-Fission), and nothing for google-slides, fandom, or twitter. Are we sure this should be marked as resolved?
Comment 6•2 years ago
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(In reply to Dave Hunt [:davehunt] [he/him] ⌚GMT from comment #5)
(In reply to Chris Peterson [:cpeterson] from comment #4)
Resolving as fixed because Randell says Olli's imglib priority boost in bug 1734811 fixes this regression.
Bug 1734811 comment 8 shows only a couple of improvements on Android (non-Fission), and nothing for google-slides, fandom, or twitter. Are we sure this should be marked as resolved?
I'll send this bug back to Fission triage for discussion.
Assignee | ||
Comment 7•2 years ago
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Fission definitely got improved, it just happened through another bug because of process switching logic.
One can check AWFY numbers.
Updated•2 years ago
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Description
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