Bug 1687106

Summary:	kpat uses a lot of memory
Product:	[Fedora] Fedora	Reporter:	Pierre Juhen <pierre.juhen>
Component:	kpat	Assignee:	Than Ngo <than>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	fedora, jcs, jreznik, kde-sig, khd, rdieter, simmonsjw, than
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Last Closed:	2019-05-12 22:26:10 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Pierre Juhen 2019-03-09 20:44:52 UTC

Description of problem:

kpat uses a lot of memory, until it starts to use swap. You have  to kill it to get control of KDE again.


Version-Release number of selected component (if applicable):

kpat-18.12.2-1.fc29.x86_64

How reproducible:

Not systematic, but very often.

Actual results:

kpat and KDE becomes very, very slow, unusable

Expected results:


Additional info:

Comment 1 clifford snow 2019-03-10 19:40:39 UTC

I'm seeing similar slow downs with kpat. It will often die or stop responding needing a force kill to exit.

I have kpat version 3.6 on f29. 

Not sure if this will help, but top reports the following when kpat is first started
VIRT=863295
RES=97984 
SHR=64964

Whiching to another game can cause the memory requirements to jump
VIRT=1098908
RES=349600 
SHR=66588

Memory needs increase as you continue to play although they may decrease at times.

VIRT=1104736 
RES=355192  
SHR66588

Comment 2 Remi Collet 2019-03-22 08:02:02 UTC

It is unusable,

Tried kpat-18.12.2-1.fc29.x86_64 and 18.12.3 from rawhide

Comment 3 Kekke 2019-04-25 13:35:30 UTC

kpat-18.12.2-1.fc29.x86_64 on Fedora 29 is very slow/hangs and starts to consume 100% cpu.
According to other forums the problem disappears if "Solver" is disabled.

After downgrading to kpat-18.04.3-1.fc29.x86_64 everything works as expected and cpu usage is negligible.

Comment 4 Rex Dieter 2019-04-25 14:07:37 UTC

Ideally, please report this upstream to bugs.kde.org

We (downstream) have limited resources to debug/fix this ourselves, at least not with upstream collaboration.

Comment 5 Pierre Juhen 2019-05-12 22:26:10 UTC

Supposed to be closed on kpat 19.04. Not tested