cpufreq governors : schedutil missing

Question

In my linux machine, only only performance and powersave are avaliable. How I can enable schedutil?

available cpufreq governors: performance, powersave

Answer 1

I found we first have to make sure that our kernel support schedutil.

Check kernel support: Run the following command to check if the "schedutil" governor is available in your kernel:

grep -i schedutil /boot/config-$(uname -r)

If the command returns a line with CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y, it means the "schedutil" governor is enabled in the kernel configuration. I use antix linux and after upgrading my kernel from 4.9.? to linux-headers-5.10.173-antix.1-amd64-smp, schedutil can be enabled.