Created attachment 164097 [details] Screenshot of the Applications tab showing that most processes have 0% CPU usage. SUMMARY Very few applications/processes in Plasma's System Monitor display any CPU usage at all. Htop is able to reliably display this information. STEPS TO REPRODUCE 1. Open System Monitor 2. Switch to Applications or Processes tab OBSERVED RESULT Most applications have a blank entry for CPU usage. EXPECTED RESULT Most applications have some level of CPU usage. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kernel 6.5.12-300.fc39.x86_64 (available in About System) KDE Plasma Version: 5.27.9 KDE Frameworks Version: 5.111.0 Qt Version: 5.15.11 ADDITIONAL INFORMATION Screenshots of System Monitor (and htop for comparison) are provided here: https://imgur.com/a/VFwN209
I think that is intended behavior. The applications having the blank entries just mean they basically have no CPU usage. Do you see a significant difference between the numbers reported by system monitor and htop?
It's not intentional, but it seems something is messed up with your CGroup hierarchy. Can you share the output of `systemd-cgls`?
Created attachment 164232 [details] systemd-cgls output
Created attachment 164233 [details] htop output vs plasma system monitor
(In reply to fanzhuyifan from comment #1) > I think that is intended behavior. The applications having the blank entries > just mean they basically have no CPU usage. Do you see a significant > difference between the numbers reported by system monitor and htop? I do, yes. I've attached a screenshot comparing the two. See this attachment: https://bugs.kde.org/attachment.cgi?id=164233
(In reply to Arjen Hiemstra from comment #2) > It's not intentional, but it seems something is messed up with your CGroup > hierarchy. Can you share the output of `systemd-cgls`? I've attached the output of the command here: https://bugs.kde.org/attachment.cgi?id=164232
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