Open Bug 1712993 Opened 3 years ago Updated 2 months ago

scrolling bug (reproducible)

Categories

(Core :: Graphics: CanvasWebGL, defect, P3)

Product:
Core
Component:
Graphics: CanvasWebGL
Platform:
ARM
macOS
Type:
defect

Tracking

()

People

(Reporter: dietrich, Unassigned)

References

(Blocks 1 open bug)

Details

Attachments

(1 obsolete file)

tweet conversation w/ mconley: https://twitter.com/dietrich/status/1397620028002947076

profile he shared: share.firefox.dev/2RQfETF

website: futureofthebrowser.web.app

Same problem with or without webrender. I see PWebGL::Msg_GetFrontBuffer taking 349ms in the content process, and PWebGL::Msg_DispatchCommands taking 1.1s on the compositor thread.

Flags: needinfo?(jgilbert)
Component: Graphics: WebRender → Graphics

Safari has a similar jank, Chrome seems smooth.

I can reproduce the problem on windows10.

Regression window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=e2438dd9b47fce310c3ca7f8de5c9f886ce8cdb7&tochange=97aed0b14f2488ca281df591892754946a447e1b

Good build: scrolling is choppy. However, It does not halt.
Bad build: Scrolling halts for few seconds.

Component: Graphics → Canvas: WebGL
Blocks: 1657125
Flags: needinfo?(jgilbert)
Priority: -- → P3
Severity: -- → S3
Attachment #9383525 - Attachment is obsolete: true
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