Re: [PATCH v2] cpupower: add a systemd service to run cpupower

["John B. Wyatt IV" <jwyatt@redhat.com>]

On Fri, Apr 25, 2025 at 05:07:31PM +0200, Francesco Poli (wintermute) wrote:
> One of the most typical use cases of the 'cpupower' utility works as
> follows: run 'cpupower' at boot with the desired command-line options
> and then forget about it.
> 
> Add a systemd service (disabled by default) that automates this use
> case (for environments where the initialization system is 'systemd'),
> by running 'cpupower' at boot with the settings read from a default
> configuration file.
> 
> The systemd service, the associated support script and the
> corresponding default configuration file are derived from what is
> provided by the Arch Linux package (under "GPL-2.0-or-later" terms),
> modernized and enhanced in various ways (the script has also been
> checked with 'shellcheck').
> 
> Link: https://gitlab.archlinux.org/archlinux/packaging/packages/linux-tools/-/tree/dd2e2a311e05413d0d87a0346ffce8c7e98d6d2b
> 
> Signed-off-by: Francesco Poli (wintermute) <invernomuto@paranoici.org>

Tested by installing the new systemd files, amending the
cpupower.default file and trying out the governor and frequency options.
I did encounter the systemd service exiting on boot after setting
performance options. The service set my options mostly correctly; my
machine has a limited number of cpu governors. This may have been my error and
I will need to test more when I have time.

Adding my tags.

Reviewed-by: John B. Wyatt IV <jwyatt@redhat.com>
Reviewed-by: John B. Wyatt IV <sageofredondo@gmail.com>
Tested-by: John B. Wyatt IV <jwyatt@redhat.com>
Tested-by: John B. Wyatt IV <sageofredondo@gmail.com>

-- 
Sincerely,
John Wyatt
Software Engineer, Core Kernel
Red Hat