2.19% damp custom.jsdebugger.stepIn.big-bundle.DAMP (Windows) regression on Thu April 24 2025
Categories
(DevTools :: Debugger, defect)
Tracking
(firefox-esr128 unaffected, firefox138 unaffected, firefox139 affected, firefox140 affected)
| Tracking | Status | |
|---|---|---|
| firefox-esr128 | --- | unaffected |
| firefox138 | --- | unaffected |
| firefox139 | --- | affected |
| firefox140 | --- | affected |
People
(Reporter: intermittent-bug-filer, Unassigned)
References
(Regression)
Details
(4 keywords)
Perfherder has detected a devtools performance regression from push d9378cd6235814a7ebc394b6aa186a72c0bec734. 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. Our guide to handling regression bugs has information about how you can proceed with this investigation.
If you have any questions or need any help with the investigation, please reach out to fbilt@mozilla.com. Alternatively, you can find help on Slack by joining #perf-help, and on Matrix you can find help by joining #perftest.
Regressions:
| Ratio | Test | Platform | Options | Absolute values (old vs new) |
|---|---|---|---|---|
| 2% | damp custom.jsdebugger.stepIn.big-bundle.DAMP | windows11-64-24h2-shippable | e10s fission stylo webrender | 1,449.71 -> 1,481.53 |
Improvements:
| Ratio | Test | Platform | Options | Absolute values (old vs new) |
|---|---|---|---|---|
| 4% | damp custom.jsdebugger.stepInNewSource.big-bundle.DAMP | windows11-64-24h2-shippable | e10s fission stylo webrender | 1,020.04 -> 981.23 |
Details of the alert can be found in the alert summary, including links to graphs and comparisons for each of the affected tests.
If you need the profiling jobs you can trigger them yourself from treeherder job view or ask fbilt@mozilla.com to do that for you.
You can run all of these tests on try with ./mach try perf --alert 44946
The following documentation link provides more information about this command.
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Comment 1•1 year ago
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Set release status flags based on info from the regressing bug 1946026
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Comment 2•1 year ago
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Thanks for filing! The regression is expected.
Will close as wont fix.
Description
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