Closed
Bug 2021592
Opened 1 day ago
Closed 17 hours ago
72.64 - 47.25% offscreencanvas_webcodecs_worker_webgl_vp9 offscreencanvas_webcodecs_worker_webgl_vp9 Mean time across 100 frames: + 11 more (Linux) regression on Wed March 4 2026
Categories
(Core :: Graphics, defect)
Core
Graphics
Tracking
()
RESOLVED
FIXED
150 Branch
| Tracking | Status | |
|---|---|---|
| firefox-esr140 | --- | unaffected |
| firefox148 | --- | unaffected |
| firefox149 | --- | unaffected |
| firefox150 | --- | fixed |
People
(Reporter: intermittent-bug-filer, Assigned: tnikkel, NeedInfo)
References
Details
(4 keywords)
Attachments
(1 file)
Perfherder has detected a talos performance regression from push 2efc0479a9399f05634fad15d9b34e5a06ecefa9. As author of one of the patches included in that push, we need your help to address this regression.
Please acknowledge, and begin investigating this alert within 3 business days, or the patch(es) may be backed out in accordance with our regression policy.
| Regression | Test | Platform | Options | Absolute values [old vs new] |
|---|---|---|---|---|
| 73% | offscreencanvas_webcodecs_worker_webgl_vp9 offscreencanvas_webcodecs_worker_webgl_vp9 Mean time across 100 frames: (doc) | linux2404-64-shippable | e10s fission stylo webrender-sw | 1.47 ms -> 2.53 ms |
| 71% | offscreencanvas_webcodecs_worker_webgl_vp9 offscreencanvas_webcodecs_worker_webgl_vp9 Mean time across 100 frames: (doc) | linux2404-64-shippable | e10s fission stylo webrender | 1.51 ms -> 2.58 ms |
| 70% | offscreencanvas_webcodecs_main_webgl_vp9 offscreencanvas_webcodecs_main_webgl_vp9 Mean time across 100 frames: (doc) | linux1804-64-shippable-qr | e10s fission stylo webrender-sw | 1.24 ms -> 2.11 ms |
| 70% | offscreencanvas_webcodecs_main_webgl_vp9 offscreencanvas_webcodecs_main_webgl_vp9 Mean time across 100 frames: (doc) | linux1804-64-shippable-qr | e10s fission stylo webrender | 1.24 ms -> 2.10 ms |
| 69% | offscreencanvas_webcodecs_main_webgl_vp9 offscreencanvas_webcodecs_main_webgl_vp9 Mean time across 100 frames: (doc) | linux2404-64-shippable | e10s fission stylo webrender-sw | 1.49 ms -> 2.52 ms |
| 68% | offscreencanvas_webcodecs_main_webgl_vp9 offscreencanvas_webcodecs_main_webgl_vp9 Mean time across 100 frames: (doc) | linux2404-64-shippable | e10s fission stylo webrender | 1.52 ms -> 2.56 ms |
| 67% | offscreencanvas_webcodecs_worker_webgl_vp9 offscreencanvas_webcodecs_worker_webgl_vp9 Mean time across 100 frames: (doc) | linux1804-64-shippable-qr | e10s fission stylo webrender-sw | 1.24 ms -> 2.07 ms |
| 67% | offscreencanvas_webcodecs_worker_webgl_vp9 offscreencanvas_webcodecs_worker_webgl_vp9 Mean time across 100 frames: (doc) | linux1804-64-shippable-qr | e10s fission stylo webrender | 1.25 ms -> 2.08 ms |
| 48% | offscreencanvas_webcodecs_main_webgl_h264 offscreencanvas_webcodecs_main_webgl_h264 Mean time across 100 frames: (doc) | linux2404-64-shippable | e10s fission stylo webrender-sw | 1.72 ms -> 2.55 ms |
| 48% | offscreencanvas_webcodecs_worker_webgl_h264 offscreencanvas_webcodecs_worker_webgl_h264 Mean time across 100 frames: (doc) | linux2404-64-shippable | e10s fission stylo webrender-sw | 1.73 ms -> 2.56 ms |
| 47% | offscreencanvas_webcodecs_main_webgl_h264 offscreencanvas_webcodecs_main_webgl_h264 Mean time across 100 frames: (doc) | linux2404-64-shippable | e10s fission stylo webrender | 1.74 ms -> 2.57 ms |
| 47% | offscreencanvas_webcodecs_worker_webgl_h264 offscreencanvas_webcodecs_worker_webgl_h264 Mean time across 100 frames: (doc) | linux2404-64-shippable | e10s fission stylo webrender | 1.73 ms -> 2.55 ms |
| Improvement | Test | Platform | Options | Absolute values [old vs new] |
|---|---|---|---|---|
| 5% | perf_reftest_singletons resize-lengthy-textarea.html (doc) | linux2404-64-shippable | e10s fission stylo webrender | 128.88 ms -> 122.34 ms |
Support & Actionable Steps
For questions, please contact afinder@mozilla.com. You can also find help on Slack (#perf-help) or Matrix (#perftest).
Action guide details:
- See the guide to handling regression bugs for investigation steps.
- Review the alert summary for affected tests, graphs, and comparisons.
- Check the PerfCompare results.
- Tests on Try: Run all tests using
./mach try perf --alert 48974(See documentation link for details). - Profiling jobs: Trigger jobs from Treeherder job view or request them from afinder@mozilla.com.
Flags: needinfo?(gmierzwinski)
|
Assignee | |
Comment 1•1 day ago
|
||
Pretty sure the 5% perf_reftest_singletons resize-lengthy-textarea.html improvement is due to some other change and not related.
|
||
Updated•1 day ago
|
status-firefox148:
--- → unaffected
status-firefox149:
--- → unaffected
status-firefox150:
--- → affected
status-firefox-esr140:
--- → unaffected
|
|
Assignee | |
Comment 3•20 hours ago
|
||
Logging:
aDisplay 0 0 1920 1080 aYSize 1920 1090 aCbCrSize 1024 546 ChromaSize(aYSize, aSubsampling) 960 545
So I guess we just need to make sure aCbCrSize is bigger than ChromaSize.
|
|
Assignee | |
Updated•20 hours ago
|
Assignee: nobody → tnikkel
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|
Assignee | |
Updated•20 hours ago
|
Severity: -- → S3
Component: Performance → Graphics
Product: Testing → Core
|
|
Assignee | |
Comment 4•20 hours ago
|
||
Pushed by tnikkel@mozilla.com:
https://github.com/mozilla-firefox/firefox/commit/d199c88e8bff
https://hg.mozilla.org/integration/autoland/rev/dea9f10f1bce
Relax check for aCbCrSize to only what we need. r=gfx-reviewers,lsalzman
Status: NEW → RESOLVED
Closed: 17 hours ago
Resolution: --- → FIXED
Target Milestone: --- → 150 Branch
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Description
•