Bug 165117

Summary: Huge resource usage downloading previews from GHNS
Product: [Unmaintained] kdelibs Reporter: Luciano Leveroni <kleverness>
Component: knewstuffAssignee: Jeremy Whiting <jpwhiting>
Status: RESOLVED FIXED    
Severity: normal CC: bedi.com, cgenie, grundleborg
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Luciano Leveroni 2008-06-27 16:17:42 UTC 
Version:            (using Devel)
Installed from:    Compiled sources

If I click on "New Theme.." button from Desktop Settings, CPU usage go to 100% when downloading theme previews. Also, there's a lot of RAM usage as well. When watching the processes I noticed that LOTS of ones named: "kdeinit4: kio_http ..." are created, increasing memory usage very fast. When going to "New Wallpaper.." this is so bad that my desktop quite locks up if I not manage to close the window in the following seconds.

I've noticed this behavior since the refactoring of GHNS interface a couple of months ago. As of yesterday SVN this has not been fixed.

My CPU is an AMD Athlon64 3000+ with 1GB RAM and I'm running yesterday's SVN from trunk (4.0.84).

This prevents using GHNS at all, at least when the item number is quite high (like Wallpapers), so this is critical IMHO.

Hope this gets tackled ASAP.
Comment 1 Jakub Stachowski 2008-06-27 20:38:28 UTC 
SVN commit 825281 by qbast:

Use KIO::get + temp buffer instead of FileCopyJob + temp files.
Schedule jobs to avoid firing hundreds of slaves.

BUG: 165117


 M  +13 -11    qasyncpixmap.cpp  
 M  +6 -1      qasyncpixmap.h  


WebSVN link: http://websvn.kde.org/?view=rev&revision=825281
Comment 2 George Goldberg 2008-06-28 04:42:29 UTC 
*** Bug 165143 has been marked as a duplicate of this bug. ***
Comment 3 David Faure 2008-06-30 21:30:48 UTC 
*** Bug 161958 has been marked as a duplicate of this bug. ***