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Scrolling of page is not smooth for large content page.
Reported by
dchau...@etouch.net,
Sep 26 2017
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Issue descriptionChrome Version: 63.0.3223.8 (Official Build)47de836373a20038efd14f8c3a154326f8c9ddda-refs/branch-heads/3223@{#11} 32/64-bit. OS: Windows-10 Touch Device. What steps will reproduce the problem? 1. Launch chrome and go to https://en.wikipedia.org/wiki/Facebook 2. Now try to scroll the page using touch and observe. Scrolling of the page is not as smooth as in Firefox/IE. Scrolling of the page should be smooth. Note: Scrolling of the page is smooth in Firefox/IE as compared to Chrome. This is a non-regression issue, seen from M-45 series. Kindly review the attached screen-cast for reference.
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Sep 26 2017
Changing the status to Untriaged, so that the issue would get addressed. Thank You.
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Sep 28 2017
I can't reproduce on Microsoft Sufracebook Pro. Scrolling with touch on that page feels very smooth. Using Chrome 63.0.3223.2 It's hard to see a difference between browser in the video. Could there be something else on your system that's causing the issue?
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Oct 5 2017
dchaubey@, could you please provide a performance trace: https://www.chromium.org/developers/how-tos/submitting-a-performance-bug
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Oct 6 2017
With response to comment #4: Kindly find the attached file of performance trace.
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Oct 6 2017
+dtapuska@, Not sure if it's related to the issue here, but we seem to get into a state where we're not ACKing the GSUs and the latency indicators never end which looks really weird in the trace. Do you know what's going on here? Otherwise I'm at a bit of a loss. It seems like everything's ticking along at 16fps, the browser, both main and CC, and the GPU so it doesn't seem like there's an issue within Chrome...
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Oct 6 2017
tdresser@ is fixing that in issue 771165 ; the tracing ids are getting clobbered. Are you sure the GSUs aren't getting acked or just the LatencyInfo indicator in devtools is all broken.
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Oct 6 2017
I'm guessing just the LatencyInfo...
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Oct 19 2017
dchaubey@ Is this about that the Edge and FireFox have slightly different fling curves in that they end up scrolling a different amount of distance? You seem to indicate that the scrolling isn't as smooth are you referring to that it is janky with missed frames? We don't see any evidence of that in the trace provided.
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Oct 23 2017
With response to comment #9: Yes, this about the Edge and FireFox having slightly different fling curves in that they end up scrolling a different amount of distance. And in Chrome the amount of scrolling distance is less as compared to Edge and FireFox.
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Oct 23 2017
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Nov 2 2017
The NextAction date has arrived: 2017-11-02 |
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Comment 1 by dchau...@etouch.net
, Sep 26 2017