TLP утилита для управления питанием

linrunner.de/en/tlp/docs/tlp-linux-advanced-power-management.html

Kernel. Power management

cat /sys/module/cpuidle/parameters/off

cd /sys/devices/system/cpu/cpu0/cpuidle
cat */power
cat */usage

C-State

powertop

The cpuidle subsystem

How to monitor power usage in Linux

http://xmodulo.com/2013/06/how-to-monitor-power-usage-in-linux.html

sudo apt-get install powertop
sudo powertop