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performance – How can I produce high CPU load on Windows? – Super User

Posted by jpluimers on 2020/10/28

Reminder to self: [WayBack] performance – How can I produce high CPU load on Windows? – Super User

Poor-mans-solution is a batch file filling one core:

@echo off
goto loop

To stop, press Ctrl+C in the console.

Far easier is [WayBack] Tools To Simulate CPU / Memory / Disk Load – The Way I See It:

There is an old SysInternals tool from 1996 called “CPU Stress” that still works. (I just tried it on my Windows 10 laptop.)

Custom CPU load

It’s GUI based and allows you to run up to four threads at custom intensities. This allows you to tune the desired CPU load. As a rule of thumb: One thread with Activity set to Maximum will consume about 25% CPU. So as an example: If you run three threads at Maximum, your CPU load goes to about 75%.


CPUSTRES.EXE is a portable download and does not require installation.


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