Bug 314316

Summary: record to sd-card (via USB 2.0) is very slow and high-load cpu
Product: [I don't know] kde Reporter: Pavel Nedrigailov <pavel.nedr>
Component: generalAssignee: Unassigned bugs mailing-list <unassigned-bugs>
Status: RESOLVED WORKSFORME    
Severity: major CC: cfeck
Priority: NOR    
Version: Git   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Pavel Nedrigailov 2013-02-02 23:14:07 UTC 
There is KDE 4.10.00, Fedora 18
Trying to record to sd card (connected via USB card reader) causes high cpu load (around 60-80 %);
Recording is very slow (~0.5 MB/s)
Not depended on the program (copyng files via Dolphin, cp or dd, there is sympthoms described above;
In console login (switching by ctrl-alt-f2) this card tells normal speed and CPU load;
On another systems (Fedora 18), but i386 and xfce all OK with this card;

Reproducible: Always

Steps to Reproduce:
0. update to KDE 4.10
1. insert sd card, try to write files on it
2. wait forever, looking on the CPU load
Actual Results:  
write done

Expected Results:  
write done, but a bit faster
Comment 1 Pavel Nedrigailov 2013-02-03 00:16:03 UTC 
looks like after updates from repositories problem has gone