# Cpufrequtils - Tune CPU ###### tags: `Ubuntu` `Technology` > **Date**：2023/02/07 > **Taker**：Sin ### Install `cpufrequtils` ```bash sudo apt install cpufrequtils ``` ### Check CPU model name ```bash cat /proc/cpuinfo | grep "model name" ``` ### ACPI (Advanced Configuration and Power Interface) ```bash sudo modprobe acpi-cpufreq ``` ### Check CPU frequency ```bash cpufreq-info ``` ### Monitor CPU ```text cpuinfo_min_freq : CPU 可以調整的最低頻率 cpuinfo_max_freq : CPU 可以調整的最高頻率 scaling_min_freq : CPU 運作下的最低頻率 scaling_max_freq : CPU 運作下的最高頻率 ``` ```bash sudo vim /sys/devices/system/cpu ``` ### Modify CPU Mode ```bash sudo vim /etc/default/cpufrequtils ``` ```text ... GOVERNOR="performance" ... ``` ### Set CPU Frequency ```text -f/--freq -d/--min frequency -u/--max frequency -g/--governor ``` ```bash sudo cpufreq-set -c [CPU] -u [Hz] sudo cpufreq-set -c [CPU] -g performance ```