Bug 240830 - REGRESSION (ANGLE update to 2022-04-26?): [ Monterey wk2 ] webgl/2.0.0/conformance/attribs/gl-vertexattribpointer-offsets.html is a flaky timeout
Summary: REGRESSION (ANGLE update to 2022-04-26?): [ Monterey wk2 ] webgl/2.0.0/confor...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebGL (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Karl Rackler
URL:
Keywords: InRadar
Depends on: 239114
Blocks:
  Show dependency treegraph
 
Reported: 2022-05-23 15:00 PDT by Karl Rackler
Modified: 2023-03-15 07:31 PDT (History)
7 users (show)

See Also:


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Comment 1 Radar WebKit Bug Importer 2022-05-23 15:01:02 PDT
<rdar://problem/93786598>
Comment 2 Karl Rackler 2022-05-23 15:08:48 PDT
I have marked this test as a flaky timeout while this issue is investigated.
Comment 3 Karl Rackler 2022-05-23 15:12:18 PDT
Pull request: https://github.com/WebKit/WebKit/pull/946
Comment 4 EWS 2022-05-23 15:15:16 PDT
Test gardening commit r294687 (250893@main): <https://commits.webkit.org/250893@main>

Reviewed commits have been landed. Closing PR #946 and removing active labels.
Comment 5 Ryan Haddad 2022-05-25 11:08:17 PDT
The test had been running in 19 seconds or fewer up until the result at 250045@main, then it started taking 

https://commits.webkit.org/250044@main was a update of ANGLE, so it is likely the cause of the slowdown.
Comment 6 Kenneth Russell 2022-05-25 11:30:39 PDT
This test runs pretty much instantaneously on macOS 12.4 on an M1 MBP in both Safari Tech Preview and Chrome Canary, both with ANGLE's Metal backend.

What could be the essential difference between WebKit's layout test harness and the browser causing this test to be so slow?
Comment 7 Ryan Haddad 2022-05-25 11:33:07 PDT
(In reply to Ryan Haddad from comment #5)
> The test had been running in 19 seconds or fewer up until the result at
> 250045@main, then it started taking 
(sorry, saved before finishing my sentence)
... then it started taking 20+ seconds and intermittently timing out.

(In reply to Kenneth Russell from comment #6)
at could be the essential difference between WebKit's layout test harness
> and the browser causing this test to be so slow?
This I'm not sure, maybe Kimmo or others can comment.