[ macOS Debug wk2 arm64 ] 7 webrtc/video layout tests are flakey timing out

• Component: WebRTC
• Status: NEW ---

[Robert Jenner]

The following 7 webrtc tests are flakey timeouts in BigSur Debug wk2 on Apple Silicon only:
webrtc/video-rotation-no-cvo.html
webrtc/video-rotation.html
webrtc/video-setDirection.html
webrtc/video-sframe.html
webrtc/video-unmute.html
webrtc/video-with-data-channel.html
webrtc/video.html

HISTORY URL:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&suite=layout-tests&test=webrtc%2Fvideo-rotation-no-cvo.html&test=webrtc%2Fvideo-rotation.html&test=webrtc%2Fvideo-setDirection.html&test=webrtc%2Fvideo-sframe.html&test=webrtc%2Fvideo-unmute.html&test=webrtc%2Fvideo-with-data-channel.html&test=webrtc%2Fvideo.html&architecture=arm64

All of these tests have very similar histories in the sense that they all started flakey timing out when they started to run on Debug on Apple Silicon Macs. It should be noted that the timeouts are flakey, but they occur more often than not.

[Radar WebKit Bug Importer]

<rdar://problem/75320466>

[Robert Jenner]

Created attachment 422940 [details]
Timeout diffs

Attaching all 7 diffs for the tests that are timing out.

[Robert Jenner]

I cannot reproduce these failures because they only occur in Debug on Apple Silicon Macs, and I do not have access to one of those systems.