wh1t3h47 / cpu_powersave

Bash script to control CPU power consumption, featuring ACPI AC auto detection and Intel Turbo Technology

CPU Powersave

A small bash utility to scale down or up CPU power consumption

Pequena utilidade escrita em bash para aumentar ou diminuir o consumo de energia da CPU

By wh1t3h47

(Antônio Martos Harres)

- https://github.com/wh1t3h47

Features

1. Automatically detects if charger is plugged and acts accordingly to the context;
2. Set your own limits for maximium clock, core count and governor;
3. Control your CPU whenever a power source change and automatically apply the battery or AC profile.

WARNINGS:

1. This script runs as root, so make sure it's owned by user and group root and it's not writable by any other user, otherwise you're installing a tick bomb inside your system;
2. Do NEVER set a script with suid bit: If your shell script has suid priviledge, it's a backdoor waiting to be exploited, any user could gain root without password.

Dependencies:

• cpufreq
• cpufreqd
• lscpu
• Linux

TODO

• 1. Make disable_pstate a parameter
• 2. Respect max pstate clock as well
• 3. Find a better solution to detect max clock speed
• 4. Implement systemd service
• 5. Make governor a parameter
• 6. modprobe all governors
• 7. Create a way to configure CPU settings for each amount of battery