1699054 - 0.72% installer size (osx-cross) regression on push a6378449fad57642fe5188caf9f3bed1e32438a9 (Wed March 17 2021)

Status: RESOLVED WONTFIX

(Core :: Graphics: WebGPU, defect)

Description

[Alexandru Ionescu (needinfo me) [:alexandrui]]

Perfherder has detected a build_metrics performance regression from push a6378449fad57642fe5188caf9f3bed1e32438a9. As author of one of the patches included in that push, we need your help to address this regression.

Regressions:

Ratio	Suite	Test	Platform	Options	Absolute values (old vs new)
1%	installer size		osx-cross		79,502,571.25 -> 80,074,704.83

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

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

Set release status flags based on info from the regressing bug 1697509

Comment 2

[Dzmitry Malyshau [:kvark]]

This is expected. For a little while we had a macOS build that accidentally excluded SPIRV-Cross, which is a big dependency.
You can see the associated dip here - https://bugzilla.mozilla.org/show_bug.cgi?id=1622846#c45
Now we got it re-enabled, so the installer size is back to where it was.
We are working (in the medium-long term) to remove SPIRV-Cross dependency entirely, just not today.