Power Management Manjaro

Overview

The following shows how you can optimize your computer using Powertop to generate runing recommendations and apply those optimizations at boot using an rc-local service.

Powertop

  1. Install powertop

    sudo pacman -S powertop

  2. Run powertop report (on battery power)

    sudo powertop -r

    After a few seconds, a file called powertop.html is created.

  3. Open the powertop.html file in your browser and inspect the Tuning tab for tuning recommendations.

Configure rc-local service

  1. Create rc.local file in /etc directory with the following content

    #!/bin/sh -e

echo "Hello World"

# Insert powertop optimization scripts here. 

exit 0

  2. Create rc-local.service file in /etc/systemd/system directory with the following content

    #  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.

[Unit]
Description=/etc/rc.local Compatibility
ConditionPathExists=/etc/rc.local

[Service]
Type=oneshot
ExecStart=/etc/rc.local
TimeoutSec=0
StandardOutput=tty
RemainAfterExit=yes
SysVStartPriority=99

[Install]
WantedBy=multi-user.target

  3. Enable and start rc-local service

    sudo systemctl enable rc-local
sudo systemctl start rc-local

  4. Confirm that the service has successfully started

    sudo systemctl status rc-local

References