Bug 512340

Summary: CPU cores wrong order
Product: [Applications] plasma-systemmonitor Reporter: Mariusz <fisiu82>
Component: generalAssignee: KSysGuard Developers <ksysguard-bugs>
Status: NEEDSINFO WAITINGFORINFO    
Severity: normal CC: ahiemstra, plasma-bugs-null
Priority: NOR    
Version First Reported In: 6.5.3   
Target Milestone: ---   
Platform: CachyOS   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: CPU cores list

Description Mariusz 2025-11-19 12:36:24 UTC
Created attachment 186949 [details]
CPU cores list

System Monitor, History tab. CPU shows list of cores and they are presented in wrong order. `Core 2` should be next to `Core 1`, not after last core, same with `Core 10`. It should be after `Core 9`.

STEPS TO REPRODUCE
1.  Open System Monitor (on multicore cpu, > 10)
2.  Switch to History tab

OBSERVED RESULT
The CPU cores are listed in the wrong order.

EXPECTED RESULT
The CPU cores are listed in correct order, from smallest to largest.

SOFTWARE/OS VERSIONS
Operating System: CachyOS Linux 
KDE Plasma Version: 6.5.3
KDE Frameworks Version: 6.20.0
Qt Version: 6.10.0
Kernel Version: 6.17.8-2-cachyos (64-bit)
Graphics Platform: X11
Processors: 16 × AMD Ryzen 7 7700 8-Core Processor
Memory: 32 GiB of RAM (30.9 GiB usable)
Graphics Processor: AMD Radeon RX 6700 XT
Comment 1 Arjen Hiemstra 2026-01-05 15:31:29 UTC
This works correctly for me. However, the sorting happens based on locale, so something might be wrong there. You'll want to check if yours is correct, you can use `localectl` to check what your system thinks.