Linux command
powertop 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Calibrate
sudo powertop --calibrate
Example
sudo powertop --html=[report.html]
Auto-tune
sudo powertop --auto-tune
Example
sudo powertop --time=[60]
说明
powertop analyzes system power consumption and suggests optimizations. It identifies power-hungry processes, devices, and kernel settings, providing actionable recommendations. The interactive mode shows real-time power usage breakdown. Reports can identify specific software or hardware causing excessive power drain on laptops.
参数
- --calibrate
- Calibrate power measurement (cycles display states)
- --html _file_
- Generate HTML report
- --auto-tune
- Apply all suggested power optimizations
- --time _seconds_
- Measurement duration (default: 20)
- --csv _file_
- Generate CSV report
- --iteration _num_
- Number of iterations
FAQ
What is the powertop command used for?
powertop analyzes system power consumption and suggests optimizations. It identifies power-hungry processes, devices, and kernel settings, providing actionable recommendations. The interactive mode shows real-time power usage breakdown. Reports can identify specific software or hardware causing excessive power drain on laptops.
How do I run a basic powertop example?
Run `sudo powertop --calibrate` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does --calibrate do in powertop?
Calibrate power measurement (cycles display states)