Bug 501152

Summary: total CPU usage percentage numbers do not add up correctly
Product: [Applications] plasma-systemmonitor Reporter: Ivaylo N <ivaylon>
Component: generalAssignee: KSysGuard Developers <ksysguard-bugs>
Status: RESOLVED DUPLICATE    
Severity: minor CC: ahiemstra, kdedev, plasma-bugs-null
Priority: NOR    
Version First Reported In: 6.3.2   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Ivaylo N 2025-03-06 16:06:24 UTC
SUMMARY

STEPS TO REPRODUCE
1. Install OpenSUSE TW on laptop
2. run System Monitor
3. click History

OBSERVED RESULT
total CPU usage is above 100%, such as 300..400 as a sum of 4 cores none of which is 100 loaded.

EXPECTED RESULT
sum of all CPU cores does not add up to 400%, it should add up to 100% max.

SOFTWARE/OS VERSIONS
Windows: NA
macOS: NA
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: OpenSUSE Tumbleweed 20250304
KDE Plasma Version: 6.3.2
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2

ADDITIONAL INFORMATION
percentage numbers do not add up correctly. Example: CPU0=20%, CPU1=20, CPU2=20%, CPU3=20%, Total CPU=300%. Bad math.
Comment 1 TraceyC 2025-03-07 15:42:40 UTC
This looks like a duplicate of bug 434040. It has an open merge request, which seems to have stalled. I poked the submitter about it.
Please follow the other report for updates on this issue. Thanks.

*** This bug has been marked as a duplicate of bug 434040 ***