Clever Geek Handbook

How to Constantly Limit CPU Frequency

I need to limit the processor frequency of my Linux machine. I know about cpufreq sysfs, but the online limitation is too late in my case.

Is there a kernel parameter for this?

Where do the values ​​for cpuinfo_max_freq

and come from scaling_max_freq

? Can I change them before the regulator starts changing the processor frequencies? Can I change the default slider (for example, for powerave mode)?

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You can achieve this by compiling the kernel and enabling only the "powerave" regulator.

This sets the static frequency to the lowest supported frequency using the CPU



Check here to see if this can be set as a kernel parameter for a multi-governor kernel

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