Closed
Bug 1734597
Opened 1 year ago
Closed 1 year ago
about:processes shows slightly active threads and processes as idle on Windows
Categories
(Toolkit :: Performance Monitoring, defect)
Toolkit
Performance Monitoring
Tracking
()
RESOLVED
FIXED
95 Branch
Tracking | Status | |
---|---|---|
firefox95 | --- | fixed |
People
(Reporter: florian, Assigned: florian)
References
(Blocks 1 open bug)
Details
Attachments
(1 file)
On Windows the resolution of the CPU time information is 16ms, so any thread that used less than 16ms in the last seconds is reported as idle. This is annoying because it means we can't figure out which threads cause many short CPU wake ups. The API that is reliable on Windows is the API returning the thread cycle count, so we can use it as a fallback to decide which threads are idle.
Assignee | ||
Comment 1•1 year ago
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Pushed by fqueze@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/df62726f3d16 Make about:processes fallback to cycle count to decide if a thread or process is active to workaround low CPU timing precision on Windows, r=dthayer,fluent-reviewers,flod.
Comment 3•1 year ago
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bugherder |
Status: ASSIGNED → RESOLVED
Closed: 1 year ago
status-firefox95:
--- → fixed
Resolution: --- → FIXED
Target Milestone: --- → 95 Branch
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Description
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