Open Bug 1580864 Opened 5 years ago Updated 2 years ago

Janky scrolling with interactive map

Categories

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

defect

Tracking

()

People

(Reporter: overholt, Unassigned)

References

(Blocks 3 open bugs)

Details

Attachments

(1 file)

Attached file about:support

Scrolling with my mouse wheel on this page is much smoother (and faster) in Chrome than in Nightly:

https://www.nytimes.com/interactive/2019/09/11/us/midwest-flooding.html?action=click&module=Top%20Stories&pgtype=Homepage

It's Nightly on Windows 10 on an external 4k monitor (DisplayPort) running on an Intel GPU with WebRender on. about:support attached.

Profile: https://perfht.ml/2LNSHJF

It seems similarly janky not connected to an external monitor, FWIW.

Component: Graphics → Graphics: WebRender
Priority: -- → P3

This would benefit a lot from optimizing out empty blob tiles, we'd still have a lot of overdraw from how the map is rendered in several passes.

This page generates an enormous amount of items in the texture cache.

Blocks: wr-batching-perf
No longer blocks: wr-perf
Severity: normal → S3
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