Closed
Bug 1675865
Opened 4 years ago
Closed 4 years ago
sw-wr: scroll the Mozilla Phonebook page is very laggy
Categories
(Core :: Graphics: WebRender, defect)
Tracking
()
RESOLVED
FIXED
| Tracking | Status | |
|---|---|---|
| firefox84 | --- | affected |
People
(Reporter: cpeterson, Unassigned)
References
()
Details
Attachments
(1 file)
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(deleted),
text/plain
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Details |
Steps to reproduce
- Enable gfx.webrender.software.
- Log into https://people.mozilla.org/
- Load the Mozilla Phonebook tree view: https://people.mozilla.org/o/highlight/
- Scroll down the page. I'm using a scroll gesture on my Windows laptop's touchpad.
Expected result
The page should scroll smoothly like hardware-accelerated WebRender and Chrome do.
Actual result
Scrolling with sw-wr is very laggy. The scrollbar thumb moves in fits and starts. The page checkerboards.
Many pages feel less responsive when I have sw-wr enabled on my Windows laptop, but the Mozilla Phonebook tree view page is much worse than others.
Here is a profile recording me scrolling the page using my touchpad:
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Reporter | |
Comment 1•4 years ago
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Here is my about:support.
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Comment 2•4 years ago
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Mostly in brush_linear_gradient_ALPHA_PASS_frag::brush_fs, cs_clip_rectangle_FAST_PATH_frag::run
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Updated•4 years ago
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Description
•