High CPU usage in webrender when the icon of an rss feed is an animated gif
Categories
(Thunderbird :: Folder and Message Lists, defect)
Tracking
(Not tracked)
People
(Reporter: trash.paradise, Unassigned)
References
Details
(Keywords: perf)
User Agent: Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0
Steps to reproduce:
Upgrade from TH 78 to TH 91 with a RSS feed whose icon is an animated gif (actually this one: https://hackstock.net/podcast.xml).
Actual results:
Very high cpu usage when unfolding the "Blog and News" folder (RSS feeds), back to normal when folding it or changing tab (i.e. when hiding the animated gif in one way or another).
Expected results:
Normal CPU usage in both situations.
NB: TH 78 already had a perhaps too high CPU usage in this case, but it was still reasonable.
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Updated•3 years ago
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Comment 1•2 years ago
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Please post the performance profile URL here. Instructions at https://support.mozilla.org/en-US/kb/profiling-thunderbird-performance
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Comment 3•2 years ago
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Thanks. Maybe similar to bug 1697999
Did you get the wrong link? I don't see the connection between the two bugs.
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Comment 5•2 years ago
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(In reply to ffthbugs from comment #4)
Did you get the wrong link? I don't see the connection between the two bugs.
Do you still see this issue when using version 102?
Do you still see this issue when using version 102?
Yes I do. New performance profile: https://share.firefox.dev/3E6WChp
The problem has disappeared with Thunderbird 115, but that's because there are no longer any icons for RSS feeds. So I don't know if we can really consider it solved...
Description
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