Table of Contents

• EPP-systemd
• Dependencies
• Installation
• Uninstallation

Currently, it only supports AMD processors and is being tested on my laptop powered by an AMD Ryzen 7 7840HS that runs Fedora 40. I don't have an Intel machine to learn about intel_pstate. If you have an Intel machine and would like to contribute, please do so (see #4).

EPP-systemd

Set Energy Performance Preference based on charging status and battery capacity.

Default behavior if cpu_performance_config.conf is not edited:

• If plugged in, sets EPP to performance if battery capacity is greater than 50, else sets to balance_performance.
• If not plugged in, sets EPP to balance_performance if battery capacity is greater than 50, else sets to power.

Dependencies

• Your distro must have systemd.
• The amd_pstate_epp scaling driver must be installed/enabled. Running cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver will return amd-pstate-epp if it is enabled.

Installation

1. Clone the repository and change into the directory.

   git clone https://github.com/realKarthikNair/EPP-systemd
   cd EPP-systemd

2. Customize thresholds and EPP by editing cpu_performance_config.conf if needed. The file is self explanatory.

3. Run install-and-enable.sh after making it executable to install the service and enable it.

   chmod +x install-and-enable.sh
   ./install-and-enable.sh

Uninstallation

1. Run uninstall.sh after making it executable to uninstall the service.

   chmod +x uninstall.sh
   ./uninstall.sh