winsiderss / systeminformer

A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ http://www.windows-internals.com
https://systeminformer.sourceforge.io
MIT License
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Wrong CPU utilization (not accounting for CPU clock muliplier) #2093

Open ageor7 opened 3 weeks ago

ageor7 commented 3 weeks ago

It seems CPU utilisation columns and graphs don't take the cores' clock multipliers into account. As a result, System Informer falsely suggests that the CPU works closely to 100% (therefore is near-congested), even if the multipliers are, e.g. at 11 (1100MHz), with a maximum of 24 (2400MHz).

So, while CPU utilisation is correct for the CPU's given clock, it can be far from its actual capability, allowing for the wrong impression.

Windows Task Manager and Mark Russinovich's Process Explorer don't have this issue. So CPU utilisation values are, more often than not, significantly different among SI and them, adding to the confusion…