Debian下cpupower设置记录

• Linux内核调频知识 链接

---

查看当前cpu调度器

cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
查看cpu支持调度

cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors

查看当前cpu频率

cat /proc/cpuinfo | grep MHz

(高版本内核可能不适用查看cpu频率)

Debian下(我用的deepin):

1. sudo apt install linux-cpupower (Debian下不会有默认配置文件在/etc/default/cpupower)

2. 创建cpupower配置文件/etc/default/cpupower(可以参考其他发行版本下cpupower的配置文件

   # 自己设置调度
   CPUPOWER_START_OPTS="frequency-set -g performance"
   CPUPOWER_STOP_OPTS="frequency-set -g powersave"
   

3. 创建systemd服务,vim /usr/lib/systemd/system/cpupower.service

   [Unit]
   Description=Configure CPU power related settings
   After=syslog.target
   
   [Service]
   Type=oneshot
   RemainAfterExit=yes
   EnvironmentFile=/etc/default/cpupower
   ExecStart=/usr/bin/cpupower $CPUPOWER_START_OPTS
   ExecStop=/usr/bin/cpupower $CPUPOWER_STOP_OPTS
   
   [Install]
   WantedBy=multi-user.target
   

   • 注意EnvironmentFile,其他发行版本换成相应配置文件的路径

4. 开启服务

   systemctl daemon-reload

   systemctl enable cpupower.service 开机自动启动

   systemctl start cpupower.service当前启动

---

• 也不一定要创建服务,写个脚本定时执行cpupower -c all frequency-set -g 调度类型就行

---

• cpupower之类命令记录

  cpupower -c all frequency-info #查看所有cpu info
  cpupower -c all frequency-set -g xxx #修改所有cpu调度类型
  cat /proc/cpuinfo | grep MHz #查看当前cpu频率
  
  

---

• 参考

  blog1

  systemd

  Arch wiki

  blog2