Bug 189507 - ksysguard reports negative memory usage
Summary: ksysguard reports negative memory usage
Status: RESOLVED FIXED
Alias: None
Product: ksysguard
Classification: Unmaintained
Component: general (show other bugs)
Version: 4.7 and older
Platform: unspecified Other
: NOR normal
Target Milestone: ---
Assignee: KSysGuard Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-04-13 08:08 UTC by Dat Nhan
Modified: 2018-02-22 12:56 UTC (History)
3 users (show)

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

Attachments
Screenshot showing negative value for physical memory amount (in kbytes) (23.85 KB, image/png)
2009-08-07 11:32 UTC, Romain 		Details
View All Add an attachment

Note You need to log in before you can comment on or make changes to this bug.
Description Dat Nhan 2009-04-13 08:08:00 UTC 
Version:           4 (using KDE 4.1.2)
OS:                I Don't Know
Installed from:    I Don't Know

I am running Fedora 10. When I run a program that uses 2.3GiB (report by GNome system monitor), but ksysguard reports -1,783M (negative).
Comment 1 Sebastien Martel 2009-07-21 20:00:25 UTC 
Is this still an issue?  Which memory sensor was reporting a negative value free/used/buffer/...?
Comment 2 Romain 2009-08-07 11:32:24 UTC 
Created attachment 35957 [details]
Screenshot showing negative value for physical memory amount (in kbytes)
Comment 3 Romain 2009-08-07 11:32:51 UTC 
I have the same problem on 4.3 (debian unstable) I'm attaching a screenshot.

It's the "Memory" sensor (tooltip says something like "This is the amount of real physical memory that this process is using by itself"). The Virtual sensor shows the proper value.

When display is in kilobytes, the number is negative (see screenshot). When it's in megabytes, the value is 0.1M and when it's in gigabyte it's 0.1G.

Hope this helps,
Romain
Comment 4 Mykola Krachkovsky 2009-09-26 17:40:02 UTC 
KDE4.3.1 - same bug. Seems like ksysguard (or sensor) uses 32 bit _signed_ variable to keep process memory usage.
Comment 5 Julian Steinmann 2018-02-22 12:56:47 UTC 
Cannot reproduce with KSysguard 5.12.1. Seems fixed.