1948688 - 11.05% damp custom.jsdebugger.open-large-minified-file.DAMP (Linux) regression on Mon February 10 2025

Status: RESOLVED WONTFIX

(DevTools :: Debugger, defect)

Description

[Treeherder Bug Filer]

Perfherder has detected a devtools performance regression from push 6ca339ffce822ede60ee06f39190c2d9103872ef. 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)
11%	damp custom.jsdebugger.open-large-minified-file.DAMP	linux1804-64-shippable-qr	e10s fission stylo webrender	56.40 -> 62.63

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 patch(es) may be backed out in accordance with our regression policy.

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Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1908327

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

It has been over 7 days with no activity on this performance regression.

:bomsy, since you are the author of the regressor, bug 1908327, which triggered this performance alert, could you please provide a progress update?

If this regression is something that fixes a bug, changes the baseline of the regression metrics, or otherwise will not be fixed, please consider closing it as WONTFIX. See this documentation for more information on how to handle regressions.

For additional information/help, please needinfo the performance sheriff who filed this alert (they can be found in comment #0), or reach out in #perftest, or #perfsheriffs on Element.

For more information, please visit BugBot documentation.

Comment 3

[Hubert Boma Manilla (:bomsy)]

Taking a look ..

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1908327

Comment 5

[Hubert Boma Manilla (:bomsy)]

Took a look, the regression is expected with the current migration away from the babel parser. Improvements to this test in the subsequent patches in Bug 1943945