Bug 485985

Summary: Memory RAM not adding up from children processes.
Product: [Applications] plasma-systemmonitor Reporter: Brada <bradaua>
Component: generalAssignee: KSysGuard Developers <ksysguard-bugs>
Status: NEEDSINFO WAITINGFORINFO    
Severity: wishlist CC: ahiemstra, plasma-bugs-null
Priority: NOR    
Version First Reported In: 5.27.5   
Target Milestone: ---   
Platform: Debian stable   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Plasma vs other system monitor

Description Brada 2024-04-22 22:29:58 UTC
Created attachment 168822 [details]
Plasma vs other system monitor

SUMMARY

STEPS TO REPRODUCE
1.  Install brave via "sudo apt brave-browser"
2.  Open Plasma system montor

OBSERVED RESULT
Memory/CPU values are only for specific process, and children does not add up.

EXPECTED RESULT
To be added up, see my attachment, it's clearly that brave doesn't use 700kb of memory.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Depian 12.5 Stable, Plasma 5.27.5 stable
(available in About System)
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Both x11/Wayland

ADDITIONAL INFORMATION
I'm a Windows user, trying to switch to Linux, but seems that everything is broken :D
In other system monitor is 4.7gb(which I think is the correct one). 

I see people complaining about this on internet, because I searched to fix the problem, but I couldn't find a solution... since it looks like the column is broken and useless. I expected of course, that all the child processes to be added as the final memory(and CPU, and others).

I see that in columns we have CPU Usage for children processes adding up, maybe add one also for memory?
Comment 1 Arjen Hiemstra 2025-09-24 15:25:46 UTC
The Applications view in System Monitor is based on cgroups, if Brave does something unexpected there we can end up not finding the right processes. For Plasma 6.3 a bunch of work was done to improve this. Can you retest with a recent Plasma and see if it still happens? If it does, please share the output of `systemd-cgls`.
Comment 2 Bug Janitor Service 2025-10-09 03:46:54 UTC
๐Ÿ›๐Ÿงน โš ๏ธ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

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