2025.12.19

MS-01のファンうるさすぎ問題、CPU Governorだった

performanceになってた

powersaveにしたらバカ静かになりました

intel_pstateのpowersaveはいわゆるschedutil？と同等らしい

# cpupower frequency-info

analyzing CPU 8:

driver: intel_pstate

CPUs which run at the same hardware frequency: 8

CPUs which need to have their frequency coordinated by software: 8

maximum transition latency: Cannot determine or is not supported.

hardware limits: 400 MHz - 5.40 GHz

available cpufreq governors: performance powersave

current policy: frequency should be within 400 MHz and 5.40 GHz.

The governor "powersave" may decide which speed to use

within this range.

current CPU frequency: Unable to call hardware

current CPU frequency: 500 MHz (asserted by call to kernel)

boost state support:

Supported: yes

Active: yes