STINNER Victor <vstin...@python.org> added the comment:
On my Windows 10 version 1903, I get:
C:\> typeperf "\System\Processor Queue Length" -si 1
Fin du programme, veuillez patienter...
Erreur : aucun compteur valide.
C:\> echo %errorlevel%
-268435454
Error message in english: "Error: No valid counters"
Because of this error, regrtest fails with:
...
File "C:\vstinner\python\master\lib\test\libregrtest\win_utils.py", line 85,
in getloadavg
typeperf_output = self.read_output()
File "C:\vstinner\python\master\lib\test\libregrtest\win_utils.py", line 82,
in read_output
return overlapped.getbuffer().decode()
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 74:
invalid start byte
I'm using:
platform.architecture: 64bit WindowsPE
platform.platform: Windows-10-10.0.18362-SP0
sys.windowsversion: sys.getwindowsversion(major=10, minor=0, build=18362,
platform=2, service_pack='')
Note: same error when testing as an administrator. It's not a permission issue.
--
On the other side, "wmic cpu get loadpercentage" works as expected:
C:\> wmic cpu get loadpercentage
LoadPercentage
1
1
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<https://bugs.python.org/issue36670>
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