What is happening on different power-modes?

Hi,

I read many articles about power-modes but I could not found any good answer. What is really happening when I enable performance or balance mode? Does it effect automatic background updates of Flatpak or OS? Does background services slow down? What is the effect on end-user side?

AFAIK on Android when battery mode is enabled background apps are pausing after a while. Is anything similar is happening on Fedora?

Thank you

1 Like

Do you mean power modes in Gnome, or from BIOS? Or via the power-profile-daemon directly?

Changes/Power Profiles Daemon - Fedora Project Wiki gives some ideas.

If set via the BIOS, I think it caps CPU frequencies.

Im not sure. I just see a power mode on gnome menu. I use that.

Im sure its not about BIOS :slight_smile:

So that is Gnome which uses power-profile-daemon.
Don’t quote me exactly, but performance means screen won’t dim, hard drives won’t spin down. How much info do you need? When I can’t find an answer on Google or DuckDuckGo, I use Kagi which is a paid service (I think it costs too much so I use the free service) but the results have less low quality items.

From F41 (I think?) on, tuneD is used

So you should look into their documentation

https://tuned-project.org

PDF Presentation

RedHat docs

Darn, I’ out of date! I think you are right that tuned has replaced power-profiles-daemon on workstation and some others (but not everything yet).
I am on Sway and have power-profiles-daemon AND tuned installed.