Firefox ESR taking a lot of CPU at idle
Categories
(Core :: Performance: General, defect)
Tracking
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People
(Reporter: blassey, Unassigned)
Details
Basic information
I run Firefox ESR from debian in a linux container on my chromebook. Pretty regularly if have firefox running, my machine gets hot and the fan spins up. Looking at the task manager I see that linux container taking 200-300% of CPU.
Steps to Reproduce:
Expected Results:
Actual Results:
More information
Screenshot: (if relevant, please attach a screenshot or screencast to this bug report)
Profile URL: (follow the instructions at https://profiler.firefox.com/)
https://share.firefox.dev/3n34QOC
Basic systems configuration:
OS version:
Chrome OS 94
GPU model:
Number of cores: 8
Amount of memory (RAM): 16 GB
Thanks so much for your help.
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Comment 1•4 years ago
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Hey Brad, thanks for filing!
Any chance you can get a Linux perf profile? Given the fact the privacy sanitation seems to have stripped all threads and processes, it seems like in the threads we profile by default no activity was detected inside Firefox.
There's documentation on how to import the profile into profiler.firefox.com so you can share it here, see: https://profiler.firefox.com/docs/#/./guide-perf-profiling
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Updated•4 years ago
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Updated•4 years ago
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Reporter | |
Comment 2•4 years ago
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As I mentioned on matrix, I couldn't sort out how to get perf to work on this machine. But I did switch to current stable, which so far isn't having this issue.
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Comment 3•4 years ago
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Sounds like this issue is resolved. Brad, feel free to re-open if you run into this again with any recent builds. For now it doesn't seem like this is something common or actionable enough to justify trying to bisect and uplift whatever addressed this.
Description
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