1847478 - 3.6% regression on AWFY-Unity WebGL Benchmark suite on 1Aug2023

Status: RESOLVED DUPLICATE of bug 1846911

(Core :: JavaScript: WebAssembly, defect)

Description

[Mayank Bansal]

See this :
https://treeherder.mozilla.org/perfherder/graphs?highlightAlerts=1&highlightChangelogData=1&highlightCommonAlerts=0&selected=3913817,1734353533&series=mozilla-central,3739973,1,13&series=autoland,3913817,1,13&timerange=5184000&zoom=1690434923800,1691241864537,2107.1134166419506,2502.7443732145957

Initial suspect : bug 1571998

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Core::Graphics: CanvasWebGL' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

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

This bug has been marked as a regression. Setting status flag for Nightly to affected.

Comment 3

[Yury Delendik (:yury)]

The code contains asm.js (which is webassembly under the hood). The tail calls implementation adds extra instruction to a wasm call, which cause the regressions. 3% in realm of acceptable regression from the bug 1571998. See more details at bug 1846911.

Comment 4

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

Set release status flags based on info from the regressing bug 1571998

Comment 5

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

The severity field is not set for this bug.
:jgilbert, could you have a look please?

For more information, please visit BugBot documentation.

Comment 6

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

Set release status flags based on info from the regressing bug 1571998

Comment 7

[Kelsey Gilbert [:jgilbert]]

Sounds reasonable. I'll leave this with the JS team.