Bug 512340 - CPU cores wrong order
Summary: CPU cores wrong order
Status: NEEDSINFO WAITINGFORINFO
Alias: None
Product: plasma-systemmonitor
Classification: Applications
Component: general (other bugs)
Version First Reported In: 6.5.3
Platform: CachyOS Linux
: NOR normal
Target Milestone: ---
Assignee: KSysGuard Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-11-19 12:36 UTC by Mariusz
Modified: 2026-01-05 15:31 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

Attachments
CPU cores list (55.73 KB, image/png)
2025-11-19 12:36 UTC, Mariusz 		Details
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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.