CPU stress testing by percentage with native linux command

user_9639041 0
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I am currently running the following commands to stress test my CPU:

md5sum /dev/zero

Then I kill the process after 30 seconds.

pkill md5sum

I am looking to run a similar command but where it lets me stress the CPU by a certain percentage. I cannot use libraries like stress-ng, it has to be be able to run with basic linux distro like ubuntu. I also can't run a program as such, I have to be able to run it from the command line itself. Any suggestions or help is greatly appreciated.

cpu command-line-interface shell linux bash
1 Answers

I don't believe this is possible without installing a tool (like cpulimit, available in Ubuntu apt repo) or by using cgroups, which is complex to configure and potentially requires kernel rebuilding.

The nearest standard feature is nice, which essentially sets the process priority. So without anything else running, it would still use all the CPU time, but any other processes would get CPU priority.

user_13339250
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