cpu-performance

A simple Bash script that sets the CPU governor to performance on all cores.

This is one of my first proper Bash scripts, mainly intended for personal use — but feel free to use or modify it if you find it helpful.

Features

• Checks current CPU governor and sets it to the defined governor if it isn't already
• Config file to change which governor is used when run without any arguement
• Optional systemd service to automatically execute the script at boot
• Ability to list all available governors

Installation (Arch based systems)

git clone https://github.com/ashisgreat22/cpu-performance.git
cd cpu-performance
makepkg -si

Manual installation (All distros)

1. Download the cpu-performance file from the latest release
2. Place the file at /usr/local/bin
3. Make it executable: chmod +x /usr/local/bin/cpu-performance

(Optional) To configure the default target_governor Download the config file and place it at /etc/cpu-performance.conf (Can also be placed at ~/.config/cpu-performance.conf)

To install the systemd service

1. Download the .service file and place at /etc/systemd/system/cpu-performance.service

Usage

To run the script manually:

sudo cpu-performance <target_governor> If no governor is specified it will check config files in this order

1. /etc/cpu-performance.conf
2. ~/.config/cpu-performance.conf (Overrides 1., This file is not checked when using the systemd service)
3. Falls back to performance if no config file is found cpu-performance --list # Lists all available governors for your system

To enable the systemd service at boot:

sudo systemctl enable cpu-performance.service # target governor can only be changed by editing /etc/cpu-performance.conf

Configuration

The default config can be found in this repo, and can be found at /etc/cpu-performance.conf if installed via makepkg -si. Editing this file is the only way to control which governor is applied by the systemd service.

An additional file can be created at ~/.config/cpu-performance.conf This file will override the file at /etc/cpu-performance.conf if the command is run manually.

Requirements

• Linux system with CPU frequency scaling (/sys/devices/system/cpu/cpu*/cpufreq/)

• Root privileges

• bash and coreutils

Disclaimer

This script assumes:

• All CPU cores are online and support the same governor

• You're intentionally overriding any default or distro-specific power management behavior

This is a personal project and far from perfect, free feel to use however you want.