cpupower：Shows and sets processor power related values

软件包：

*  sys-power/cpupower
      Latest version available: 4.13.
      Latest version installed: 4.13.
      Size of files:  KiB
      Homepage:      https://www.kernel.org/
      Description:   Shows and sets processor power related values
      License:       GPL-

示例：

.-(/home/fh)----------------------------------------------------------------------------------------(root@xm)-
`--# cpupower --cpu all frequency-info --governors
analyzing CPU :
  available cpufreq governors: performance powersave
analyzing CPU :
  available cpufreq governors: performance powersave
analyzing CPU :
  available cpufreq governors: performance powersave
analyzing CPU :
  available cpufreq governors: performance powersave
analyzing CPU :
  available cpufreq governors: performance powersave
analyzing CPU :
  available cpufreq governors: performance powersave
analyzing CPU :
  available cpufreq governors: performance powersave
analyzing CPU :
  available cpufreq governors: performance powersave
.-(/home/fh)----------------------------------------------------------------------------------------(root@xm)-
`--# cpupower --cpu all frequency-info --policy
analyzing CPU :
  current policy: frequency should be within  MHz and 3.40 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
analyzing CPU :
  current policy: frequency should be within  MHz and 3.40 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
analyzing CPU :
  current policy: frequency should be within  MHz and 3.40 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
analyzing CPU :
  current policy: frequency should be within  MHz and 3.40 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
analyzing CPU :
  current policy: frequency should be within  MHz and 3.40 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
analyzing CPU :
  current policy: frequency should be within  MHz and 3.40 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
analyzing CPU :
  current policy: frequency should be within  MHz and 3.40 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
analyzing CPU :
  current policy: frequency should be within  MHz and 3.40 GHz.
                  The governor "powersave" may decide which speed to use
                  within this range.
.-(/home/fh)-----------------------------------------------------------------------------------------------------------------------------------------(root@xm)-
`--# cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor

powersave
powersave
powersave
powersave
powersave
powersave
powersave
powersave
.-(/home/fh)-----------------------------------------------------------------------------------------------------------------------------------------(root@xm)-
`--# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
powersave
.-(/home/fh)-----------------------------------------------------------------------------------------------------------------------------------------(root@xm)-
`--# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
performance powersave