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Use psutil in perf for CPU affinity #2

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vstinner opened this issue Jun 13, 2016 · 0 comments
Closed

Use psutil in perf for CPU affinity #2

vstinner opened this issue Jun 13, 2016 · 0 comments

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@vstinner
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On Python 2, the CPU affinity is not saved in metadata.

"taskset" can be replaced with "psutil.Process.cpu_affinity()" (works on Linux, Windows, FreeBSD) https://pythonhosted.org/psutil/#psutil.Process.cpu_affinity

Advice by @giampaolo who wrote psutil ;-)

I would prefer to keep psutil dependency optional whenever possible.
vstinner added a commit that referenced this issue Jun 14, 2016
@vstinner
Use psutil for CPU affinity
02c2eec 
Issue #2:

* Emit a warning if os.sched_setaffinity() or
  psutil.Process.cpu_affinity() are not available
* Use psutil.Process.cpu_affinity() on Python 2 to get the CPU
  affinity for metadata
* Add unit test on psutil
* Stop using the taskset command: it didn't work for loop calibration
vstinner added a commit that referenced this issue Apr 10, 2017
@vstinner
Calibrate warmups before recalibrate loops
d7267e6 
* Calibration: reorganize calibrations: loops #1, warmups #1,
  loops #2, warmups #2.
* format_run(): display the number of looops/warmups for calibration
  runs.
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@vstinner