https://bugs.kde.org/show_bug.cgi?id=404119
Bug ID: 404119
Summary: 100% CPU Core Usage In KSysGuard And CPU Widget, But
2% In Top And HTop And /Proc/Stat
Product: ksysguard
Version: 5.14.5
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: ksysguard
Assignee: ksysguard-b...@kde.org
Reporter: nroycea+...@gmail.com
Target Milestone: ---
Created attachment 117938
--> https://bugs.kde.org/attachment.cgi?id=117938&action=edit
screenshot of widget, ksysguard, and /proc/stat output
SUMMARY
Even with everything closed, I recently found the CPU Load Monitor widget was
showing 1 CPU core was at 100%.
KSysguard "System Load" is showing that same CPU maxed.
top, htop, and /proc/stat do not show the high usage.
STEPS TO REPRODUCE
1. Cause unknown.
2. Let me know what I need to do to get you information you need.
OBSERVED RESULT
CPU core at 100% in ksysguard and widget, but 2% in top, htop and /proc/stat
EXPECTED RESULT
CPU usage data show be the same across the board.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux
(available in About System)
KDE Plasma Version: 5.14.5
KDE Frameworks Version: 5.54.0
Qt Version: 5.12.0
ADDITIONAL INFORMATION
My system has been up for 10 days and plasmashell crashed once without
restarting so I started it back up with "kstart5 plasmashell".
If another process is scheduled to take on that CPU core at 100%, then the
100% moves to a different core. EG, cpu1 is at 100% now. If another program
grabs ahold of that core, then the 100% may move to cpu0.
Even after killing ksysguardd, which also restarts it, 1 core is still pegged
at 100%.
Again, I don't believe that high usage is actually happening.
cpu 54455067 917166 20201837 255970922 13509992 3617901 2264309 0 9059307 0
cpu0 14057889 245901 5012493 64477240 3113544 373252 483190 0 2354530 0
cpu1 13521184 216043 4973721 63463397 3212759 1772039 533901 0 2208023 0
cpu2 12932555 218534 5148656 63653809 3920836 1069710 779397 0 2174340 0
cpu3 13943438 236685 5066965 64376474 3262852 402899 467819 0 2322412 0
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