Linux Power Management: Difference between revisions
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*/usr/src/linux/Documentation/cpu-freq/index.txt | */usr/src/linux/Documentation/cpu-freq/index.txt | ||
=HOWTO= | |||
==Hibernate== | |||
https://askubuntu.com/questions/1240123/how-to-enable-the-hibernate-option-in-ubuntu-20-04 | |||
==CPU frequency scaling== | |||
* {https://docs.kernel.org/admin-guide/pm/cpufreq.html CPU Performance Scaling] | |||
* https://wiki.archlinux.org/title/CPU_frequency_scaling | |||
===Relevant commands=== | |||
cpufreq-info | |||
===Check which governor is active=== | |||
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor | |||
===Check which governors are available=== | |||
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors | |||
===Thermal Throttling=== | |||
=Tools= | =Tools= | ||
*powertop | *[[powertop]] | ||
*cpufrequtils | *cpufrequtils | ||
*cpupower | |||
*powersaved | *powersaved | ||
*powernowd | *powernowd | ||
*powerdevil | *powerdevil | ||
*lm-sensors | |||
Latest revision as of 11:27, 13 November 2025
Documentation
- /usr/src/linux/Documentation/usb/power-management.txt
- /usr/src/linux/Documentation/cpu-freq/index.txt
HOWTO
Hibernate
https://askubuntu.com/questions/1240123/how-to-enable-the-hibernate-option-in-ubuntu-20-04
CPU frequency scaling
- {https://docs.kernel.org/admin-guide/pm/cpufreq.html CPU Performance Scaling]
- https://wiki.archlinux.org/title/CPU_frequency_scaling
Relevant commands
cpufreq-info
Check which governor is active
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
Check which governors are available
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
Thermal Throttling
Tools
- powertop
- cpufrequtils
- cpupower
- powersaved
- powernowd
- powerdevil
- lm-sensors
