Score:0

Abnormal CPU usage in power save vs performance mode

cu flag

CPU usage increases when I change to power save mode, and decreases when I change to performance mode.

What can cause this?

Here is a video to demonstrate:

https://www.reddit.com/user/Faditt/comments/z82fh0/video/

my specs are:

           `.:/ossyyyysso/:.               rebyc@rebyc-MS-7D20 
        .:oyyyyyyyyyyyyyyyyyyo:`           ------------------- 
      -oyyyyyyyodMMyyyyyyyysyyyyo-         OS: Kubuntu 22.10 x86_64 
    -syyyyyyyyyydMMyoyyyydmMMyyyyys-       Host: MS-7D20 1.0 
   oyyysdMysyyyydMMMMMMMMMMMMMyyyyyyyo     Kernel: 5.19.0-23-generic 
 `oyyyydMMMMysyysoooooodMMMMyyyyyyyyyo`    Uptime: 2 hours, 26 mins 
 oyyyyyydMMMMyyyyyyyyyyyysdMMysssssyyyo    Packages: 3561 (dpkg), 33 (flatpak), 12 (snap) 
-yyyyyyyydMysyyyyyyyyyyyyyysdMMMMMysyyy-   Shell: zsh 5.9 
oyyyysoodMyyyyyyyyyyyyyyyyyyydMMMMysyyyo   Resolution: 1920x1080, 1920x1200 
yyysdMMMMMyyyyyyyyyyyyyyyyyyysosyyyyyyyy   DE: Plasma 
yyysdMMMMMyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy   WM: KWin 
oyyyyysosdyyyyyyyyyyyyyyyyyyydMMMMysyyyo   Theme: Arc Dark [Plasma], Breeze [GTK3] 
-yyyyyyyydMysyyyyyyyyyyyyyysdMMMMMysyyy-   Icons: willow-icons-light [Plasma], willow-icons-light [GTK2/3] 
 oyyyyyydMMMysyyyyyyyyyyysdMMyoyyyoyyyo    Terminal: konsole 
 `oyyyydMMMysyyyoooooodMMMMyoyyyyyyyyo     CPU: 11th Gen Intel i5-11400 (12) @ 4.400GHz 
   oyyysyyoyyyysdMMMMMMMMMMMyyyyyyyyo      GPU: NVIDIA GeForce GTX 750 Ti 
    -syyyyyyyyydMMMysyyydMMMysyyyys-       Memory: 6146MiB / 15876MiB
user535733 avatar
cn flag
The question that you are asking is unclear.
Doug Smythies avatar
gn flag
Yes, that is exactly what is supposed to happen. Energy use is highly non-linear at turbo CPU frequencies. It takes longer (more CPU usage) to run at lower CPU frequencies, but also less energy.
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