Created attachment 178249 [details] Minimum possible CPU usage in Mission Center SUMMARY With Plasma 6.3.0 the CPU usage never goes below 5% on Debian STEPS TO REPRODUCE 1. Use Debian with the 'unstable' (Sid) repository. 2. Go into a virtual terminal with CTRL+ALT+ F3. 3. Run: sudo apt update. 4. Run: sudo apt full-upgrade. 5. Run: sudo systemctl reboot. OBSERVED RESULT Since I upgraded from Plasma 6.2.5 to 6.3.0, the CPU usage shown in Mission Center never goes below 5%. The CPU usage in Plasma's System Monitor varies a lot and changes very quickly and I can see 1% and even 0. something, so below 1%, but it changes so quickly that is hard to see exactly 0. what it is. I guess the lowest there was 0.8 something. EXPECTED RESULT I expect that Mission Center, which seems to be actively developed by more developers, so a bit more trusted, is able to show again a minimum of 2% CPU usage when the computer is idle and no program is open. SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Plasma Version: 6.3.0 KDE Frameworks Version: 6.10.0 Qt Version: 6.7.2 Kernel Version: 6.12.13-amd64 (64-bit) Graphics Platform: Wayland HARDWARE SPECIFICATIONS Hardware: Laptop Dell Inspiron 5770 (17" 1080p@60Hz screen) CPU: Intel® Core™ i5-8250U CPU @ 1.60GHz GPU 1: Mesa Intel® UHD Graphics 620 (main) GPU 2: AMD Radeon R5 M465 Series RAM: 8 GiB (7.7 GiB usable) ADDITIONAL INFORMATION Debian weekly build downloaded from here: https://cdimage.debian.org/cdimage/weekly-builds/amd64/iso-dvd/ Was installed and then switched from its 'testing' repository to the 'unstable' repository in this file: /etc/apt/sources.list Then Plasma was upgraded from version 6.2.5 to 6.3.0 from a virtual terminal with the 'sudo apt full-upgrade' command. The screen's color accuracy is the default: Prefer efficiency. BTW, I had to do multiple printscreens to be able to capture 5% as a lot of time by time the capture was done, it switched to 6% usage.
Mission Center is not developed by KDE. You will have to report the bug to them: https://gitlab.com/mission-center-devs/mission-center/-/issues
(In reply to duha.bugs from comment #1) > Mission Center is not developed by KDE. You will have to report the bug to > them: https://gitlab.com/mission-center-devs/mission-center/-/issues I understand that it's not developed by KDE, but I wanted to report a higher CPU usage just by upgrading Plasma from version 6.2.5 to 6.30 as everything else stayed the same (the computer, the OS, Mission Center). And since Htop, that I like a lot and use from time to time is not able to give me a single percentage value of usage and Plasma's System Monitor just fluctuates a lot and too fast to figure out what is the average CPU usage like for the past minute, I had to use another tool and this one is the best, in my opinion. I did a few more tests and I thing I figured out a problem with my before and after value. I discovered that if I change in Plasma's Power and Battery widget the Power profile from "Power save" to "Balanced" the CPU usage shown in Mission Center can reach again 2% on idle. Have a look: https://imgur.com/WQe7wxS Same with the Power profile set to "Performance" Because of that I started looking for another independent option to understand if this different CPU usage problem depending on the power profile is a problem in Mission Center or Plasma, so: I've taken this CPU measuring usage command that gives a single percentage value: grep 'cpu ' /proc/stat | awk '{usage=($2+$4)*100/($2+$4+$5)} END {print usage "%"}' From: https://stackoverflow.com/a/9229580 And combined it with: while script; do sleep 10; done From: https://stackoverflow.com/a/25158585 As I could not make it work with the 'watch' command. The result being this command (which probably works better than with the 'watch' command as you can see a history of values). while grep 'cpu ' /proc/stat | awk '{usage=($2+$4)*100/($2+$4+$5)} END {print usage "%"}'; do sleep 1; done; I've switched the power profile and ran if for all 3 of them and it got me these results: --------------------------------Power Save-------------------------------- 5.06676% 5.0661% 5.06542% 5.06474% 5.0641% 5.06342% 5.06272% 5.06206% 5.06142% 5.06076% --------------------------------Balanced-------------------------------- 5.05539% 5.05476% 5.05411% 5.05347% 5.0528% 5.05217% 5.0515% 5.05088% 5.05024% 5.04962% --------------------------------Performance-------------------------------- 5.03792% 5.03726% 5.03656% 5.03585% 5.03515% 5.03445% 5.03376% 5.03304% 5.03234% 5.03166% So the CPU usage is always around 5% (though decreasing a bit with the higher power profile) and most likely it was the same for Plasma 6.2.5 too and probably I had looked at it while having the Power profile set as "Power save" and didn't know that Mission Center would display an inaccurate result because of it. I will try to report it upstream. Good that Plasma 6.3.0 doesn't have a higher CPU usage than the previous one without any good reason!