Open
Bug 1365095
Opened 9 years ago
Updated 4 years ago
Record and possibly alert for CPU frequency changes during build
Categories
(Firefox Build System :: General, enhancement)
Firefox Build System
General
Tracking
(Not tracked)
NEW
People
(Reporter: gps, Unassigned)
References
(Blocks 1 open bug)
Details
psutil 5.1 has a cpu_freq() API to obtain the CPU frequency. I'm not sure what all platforms this runs on and whether it returns current CPU versus maximum/baseline CPU. But it seems potentially useful to record CPU frequency during the build so we can:
* Report in metrics the CPU frequency (along with model info) so we know the types of machines people are building on
* Alert/identify users when thermal throttling may be coming into play (e.g. if CPU usage is ~100% and CPU frequency is significantly lower than an observed max, the CPU may be thermal throttled).
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Reporter | |
Updated•9 years ago
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Blocks: buildmetrics
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Comment 1•9 years ago
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FYI we should grab the "CPU brand string", which is the bit in /proc/cpuinfo on Linux like "model name : Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz". There's a small pure-Python module to do that here: https://pypi.python.org/pypi/py-cpuinfo
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Updated•8 years ago
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Product: Core → Firefox Build System
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Updated•4 years ago
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Severity: normal → S3
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Description
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