Switching channels in Element WebUI takes considerably longer on Firefox vs Chrome
Categories
(Core :: JavaScript Engine, defect, P3)
Tracking
()
People
(Reporter: bas.schouten, Unassigned)
References
(Blocks 1 open bug)
Details
Attachments
(1 file)
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1.44 MB,
video/mp4
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Details |
Switching channels takes considerably longer with Firefox than with Chrome
The difference is roughly 150ms according to the video.
Included are profiles, the time taken in these profiles is about 300ms for Firefox vs 250ms in Chrome (so smaller than the video, but still considerable). The additional time in Firefox seems to be mostly spent in JS. The block of microtasks performed that lead to the channel switch takes about 180ms in Firefox vs 130ms in Chrome. Profiles:
Firefox: https://share.firefox.dev/2LTPfBr
Chrome: https://share.firefox.dev/3dhgqRO
The Layout time (which isn't very clearly marked when loading the Chrome profile into profiler.firefox.com) seems to be similar between the two profiles.
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Updated•5 years ago
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Reporter | |
Updated•4 years ago
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Comment 1•4 years ago
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This is hot in megamorphic property access and ReactDOM code.
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Updated•1 year ago
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Description
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