Bug 478126

Summary:	kstatsviewer and systemmonitor write incorrect data
Product:	[Applications] plasma-systemmonitor	Reporter:	qweriop.trash
Component:	general	Assignee:	KSysGuard Developers <ksysguard-bugs>
Status:	RESOLVED FIXED
Severity:	normal	CC:	ahiemstra, plasma-bugs-null
Priority:	NOR	Keywords:	qt6
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Video of systemmonitor displaying messed up numbers

Description qweriop.trash 2023-12-05 21:26:51 UTC

Created attachment 163925 [details]
Video of systemmonitor displaying messed up numbers

SUMMARY
***
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***


STEPS TO REPRODUCE
1. I've not managed to reproduce it


OBSERVED RESULT
The read and write of disk/all are completely incorrect. It responds with some ridiculous number.
For example: 36967422989722450000
This number slightly changes as it should.

EXPECTED RESULT
Not a number that's that big.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.90.0
KDE Frameworks Version: 5.246.0
Qt Version: 6.6.1
Kernel Version: 6.6.3-zen1-1-zen

ADDITIONAL INFORMATION
Both the system monitor program as well as the kstatsviewer cli returns the ridiculous number.
I have 2 storage devices connected: nvme0n1 and sda.
When running kstatsviewer disk/nvme0n1/(write or read) or disk/sda/(write or read) the response is as expected. Only disk/all is affected. The same is seen in the system monitor, only when using total read or write the issue occurs.
nvme0n1 is my M.2 ssd.
sda is a usb drive.
Detaching sda didn't solve the issue.

Comment 1 qweriop.trash 2023-12-05 22:01:02 UTC

After rebooting the issue disappeared, but after a while it started again, but now only the Write speed is affected and instead of 36967422989722450000 something, it's around 270 MiB/s.
I've tried multiple times but I cannot consistently replicate the issue.

Comment 2 Arjen Hiemstra 2023-12-21 11:48:13 UTC

There was an issue where it would be possible for Plasma 6 System Monitor to use the Plasma 5 KSystemStats, leading to issues like incorrect units. This has now been fixed, can you still reproduce this with Beta 2?

Comment 3 qweriop.trash 2023-12-29 13:42:55 UTC

(In reply to Arjen Hiemstra from comment #2)
> There was an issue where it would be possible for Plasma 6 System Monitor to
> use the Plasma 5 KSystemStats, leading to issues like incorrect units. This
> has now been fixed, can you still reproduce this with Beta 2?

No I cannot. I've not had the issue with Beta 2. I believe it's fixed.