powersave and conservative CPUFreq governors for a laptop

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1

For my laptop I like to give the powersave and conservative governors a try, but they are not supported:

$ sudo cpupower frequency-info 
analyzing CPU 0:
  driver: intel_cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 20.0 us
  hardware limits: 500 MHz - 3.20 GHz
  available cpufreq governors: ondemand performance schedutil
  current policy: frequency should be within 500 MHz and 3.20 GHz.
                  The governor "schedutil" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 2.19 GHz (asserted by call to kernel)
  boost state support:
    Supported: yes
    Active: yes

Found here why I only see these 3 governors:

$ zgrep "CPU_FREQ_GOV" /proc/config.gz 
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=m
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y

So powersave, userspace and conservative are configured as modules and not compiled into the kernel.

Is there another way then compiling these modules myself to get these?
Are they maybe part of an optional package?

2

Hi
The modules are there…


modprobe cpufreq_conservative

cpupower frequency-info 
analyzing CPU 0:
  driver: intel_cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 20.0 us
  hardware limits: 1.20 GHz - 3.50 GHz
  available cpufreq governors: conservative ondemand performance schedutil

modprobe cpufreq_userspace cpufreq_powersave

cpupower frequency-info 
analyzing CPU 0:
  driver: intel_cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 20.0 us
  hardware limits: 1.20 GHz - 3.50 GHz
  available cpufreq governors: userspace conservative ondemand performance schedutil
3

That is what I missed, thanks!

Now trying auto-cpufreq.

4

Hi
Which ever one you decide on it’s likely you need to add into modules loaded at boot…