Closed Bug 1488629 Opened 6 years ago Closed 6 years ago

Very bad GPU performance on https://www.facebook.com/fbcommunity/videos/351333245688384/

Categories

(Core :: Graphics: WebRender, defect, P2)

Product:
Core
Component:
Graphics: WebRender
Version:
63 Branch
Type:
defect

Tracking

()

Status:
RESOLVED FIXED

People

(Reporter: jrmuizel, Assigned: gw)

References

(Blocks 1 open bug)

Details

We can't even paint at 24fps on my MBP. From the GPU timings it seems like we're spending a large amount of time doing C_Clip.
Blocks: wr-perf
This might be usable on Nvidia hardware but we probably shouldn't waste so much GPU time gratuitously on release.
Blocks: stage-wr-trains
Priority: -- → P2
I can reproduce this and have it reduced to a minimal test case.
Assignee: nobody → gwatson
The first part of the fix for this is https://github.com/servo/webrender/pull/3041. This patch won't make any noticeable difference to the performance in this bug until the second patch (that I'm still working on) is done.
Second part of the fix is https://github.com/servo/webrender/pull/3046. This drops the GPU time on this page from 14ms to 4ms on my machine.
Blocks: 1489639
This is fixed now.
Status: NEW → RESOLVED
Closed: 6 years ago
Depends on: 1490640
Resolution: --- → FIXED
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