cpufreq-set

1. The command line tool "cpufreq-set" is used to modify the CPU frequency scaling policy on Linux systems.
2. It allows users to adjust the CPU frequency governor, which determines how the CPU scales its frequency in response to system load.
3. The tool is typically used on systems with dynamically adjustable CPU frequencies to optimize power consumption or performance.
4. The cpufreq-set command can be used to set the governor to different options such as "ondemand," "performance," "powersave," or "userspace."
5. The "ondemand" governor adjusts the CPU frequency based on current system load, increasing it when the system is under heavy load and decreasing it during idle periods.
6. The "performance" governor keeps the CPU running at the maximum frequency continuously, which is beneficial for tasks that require the highest performance.
7. The "powersave" governor prioritizes power efficiency by keeping the CPU frequency low most of the time.
8. The "userspace" governor allows users to manually set the CPU frequency through user-space programs.
9. The cpufreq-set command can also modify other parameters such as minimum and maximum frequencies that the CPU can run at.
10. Overall, cpufreq-set provides a flexible way to manage and optimize CPU performance and power consumption on Linux systems.