Closed Bug 1678779 Opened 4 years ago Closed 3 years ago

Janking while doing touchpad scroll on chevereto.com (sw-wr)

Categories

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

defect

Tracking

()

RESOLVED FIXED
Tracking Status
firefox85 --- affected

People

(Reporter: yoasif, Unassigned)

References

(Blocks 1 open bug, )

Details

(Keywords: nightly-community)

Attachments

(1 file)

Big chunks in: brush_image_TEXTURE_2D_frag::draw_span_RGBA8 (28%) and brush_opacity_ALPHA_PASS_frag::draw_span_RGBA8 (20%)

Blocks: sw-wr-perf
Severity: -- → S4
Priority: -- → P3

The nearest fix helped this:
https://share.firefox.dev/3isUlR7
Now it's brush_image: 54%, brush_opacity: 14%

I expect remaining gains will come from doing less scaling vs making scaling faster.

This spends most of its time in the fast-path set up in bug 1692731, so I think we've addressed mostly what we can here.

Status: NEW → RESOLVED
Closed: 3 years ago
Depends on: sw-wr-perf-linear
Resolution: --- → FIXED
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