[Win11] psutil.cpu_percent get different result with task manager

[Peng-wei-Yu]

Summary

• OS: { Win11 }
• Architecture: { 64bit }
• Psutil version: { 5.9.0 }
• Python version: { 3.9.15 }
• Type: { with AMD Ryzen 7 PRO 5850U with Radeon Graphics 1.90 GHz }

Description

import psutil
psutil.cpu_percent(None)
1.2
(here is manually wait 2 seconds around)
psutil.cpu_percent(None)
1.3
(here is manually wait 10 seconds around)
psutil.cpu_percent(None)
1.1
from task manager cpu usage around 7-9%

[moyu284]

I also found the same problem

[RLYRLY]

Please see this：https://psutil.readthedocs.io/en/latest/#psutil.Process.cpu_percent , it may answer your question.In general, the value calculated on the Windows system needs to be divided by the number of CPU logical cores to be consistent with the value of the task manager.