Judder while doing touchpad scroll on various Phoronix pages (sw-wr)
Categories
(Core :: Graphics: WebRender, defect, P3)
Tracking
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Tracking | Status | |
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firefox84 | --- | affected |
People
(Reporter: yoasif, Unassigned)
References
(Blocks 1 open bug)
Details
(Keywords: nightly-community)
Issues while scrolling various Phoronix pages; profiles listed below URLs.
https://www.phoronix.com/scan.php?page=home
Profile: https://share.firefox.dev/34EAby6
https://www.phoronix.com/scan.php?page=news_item&px=Linux-FBCON-To-Ditch-AS
Profile: https://share.firefox.dev/2HMzIkn
https://www.phoronix.com/forums/forum/phoronix/latest-phoronix-articles/1216298-linux-frame-buffer-console-to-drop-accelerated-scrolling-since-it-s-full-of-bugs
Profile: https://share.firefox.dev/3e9Vc6M
Reporter | ||
Updated•4 years ago
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Updated•4 years ago
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Updated•4 years ago
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Comment 1•4 years ago
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I don't see significant cs_rectangle_clip
in the second URL (article), but I see about 18% non-idle time there when scrolling in the third URL (forum).
Comment 3•4 years ago
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Okay, I think I'm counting better now. On the forum URL, after landing bug 1676554, excluding idle time, and merging _memmove_avx_unaligned_erms
into callers, I'm getting:
48% SkSpriteBlitter_Memcpy::blitRect
19% cs_clip_rectangle_frag::run
That's still a lot of time in the clip shader.
Comment 4•4 years ago
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Okay, after bug 1676553 and bug 1674473, exclude idle time, we now have:
54% cs_clip_rectangle_frag::run
11% _memmove_avx_unaligned_erms from scale_blit
Reporter | ||
Updated•4 years ago
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Comment 5•4 years ago
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This has mostly been resolved by my recent clip rectangle and brush yuv work.
Description
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