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"System processes" reaches ~40% CPU but can't be detailed, and processes utilization doesn't add up

Open tredondo opened this issue 1 month ago • 2 comments

Is there an existing issue for this?

  • [x] I searched the existing issues and did not find anything similar.

Current Behavior

I'm trying to track down what causes a CPU spike on my Ubuntu machine.

Resources shows "System processes" at around 40%, but it doesn't detect Obsidian (#561).

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In the Processes tab, the total CPU usage is nowhere near 40%.

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Expected Behavior

No response

Steps to Reproduce

Impractical to suggest steps.

Debug Logs

Processor percentage does not add up to actual CPU use.zip

Environment


Anything Else?

No response

tredondo avatar Oct 29 '25 00:10 tredondo

I can confirm that I also experience this issue, and this has been already happening before the recent update. Here is an example from me (compared with Mission Center):

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The displayed RAM and CPU usage in Resources just doesn't make any sense, a lot of what should be allocated to "Zen Browser" is in "System processes", but it still doesn't add up to the total used RAM. I checked if this is related to uwsm, but it happens even if I don't launch Zen as a systemd unit (I'm using CachyOS with Hyprland).

notiant avatar Nov 01 '25 18:11 notiant

Hi, thanks for the issue. Odd, I've never encountered this before. I'll investigate it, maybe it makes sense to just add all the CPU usages from processes up instead of getting total CPU from somewhere else.

nokyan avatar Nov 02 '25 15:11 nokyan