https://bugs.kde.org/show_bug.cgi?id=477976
Bug ID: 477976
Summary: doesn't show CPU usage when it is close to 100%
Classification: Applications
Product: plasma-systemmonitor
Version: 5.90.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: ksysguard-b...@kde.org
Reporter: tevut...@mail.ru
CC: ahiems...@heimr.nl, plasma-b...@kde.org
Target Milestone: ---
Created attachment 163806
--> https://bugs.kde.org/attachment.cgi?id=163806&action=edit
htop vs system-monitor
SUMMARY
***
when all core are under high load (close to 100%), system monitor displays 0%
CPU usage (both for total and per core)
***
STEPS TO REPRODUCE
1. open system monitor or add widget displaying CPU usage
2. run CPU-heavy task, for example compilation or 7z benchmark (7z b 10)
3. compare usage in system monitor and htop
OBSERVED RESULT
CPU usage is 0%, only sometimes reaches 100% for some core
EXPECTED RESULT
CPU usage is close to 100% for all cores
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: ArchLinux/KDE Plasma 6 Beta, Wayland
KDE Plasma Version: 5.90.0
KDE Frameworks Version: 5.246.0
Qt Version: 6.6.1
ADDITIONAL INFORMATION
not 100% usage seems to be reported correctly, see attached screenshot
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