KDE4.3 beta issues

Terrell Prude' Jr. microman at cmosnetworks.com
Wed May 27 03:13:13 UTC 2009

Dotan Cohen wrote:
> I doubt that one would have to reinstall, in fact, if he were to keep
> his /home/user directory than a reinstall would do no good. After
> removing KDE 4.3 rename ~/.kde to ~/.kde-old and then restart: it
> should give you a clean KDE. The user could them pick out the files
> from ~/.kde-old that he needs (such as Kmail).

I just upgraded my Jaunty installation to KDE 4.3 Beta1 (aka KDE 4.2.85) 
this evening.  I have no need to go back to KDE 4.2.x, since the whole 
point is (for me) to test out the latest KDE.

Note that KTorrent on both KDE 4.2 and KDE 4.3 Beta1 does cause X11 to 
use up a lot of CPU.  Quite often (about 60% of the time), CPU is 
running at over 90%.  X11 is the culprit.  The graphics card is an Intel 
Q965 integrated video chip.  KTorrent on KDE 3.5, by contrast, asks very 
little of X11 (1% CPU usage).  This is with both integrated Intel video 
and nVidia Quadra 400 video.

Additionally, KDE 4 (including 4.3 Beta1) does feel more sluggish 
generally than does either KDE 3.5 or the Ubuntu Hardy (GNOME) with the 
same Intel Q965 graphics.  The CPU monitors show a much greater tendency 
for CPU spikes, regardless of the app that's being run.  That includes 
even switching between desktops.  Any idea what could be causing that?

Here's a "top" output from Jaunty running 4.3 Beta1, when KTorrent is 
active.  You'll see that the Xorg process is at 88%.  Upload speed 
ranges in between 100KiB and 900 KiB.  When I close KTorrent, CPU usage 
takes a nosedive.  CPU is Intel Core 2 Duo, 1.8GHz.  DRAM is 4GB.  
Kernel is i686 (32-bit), rev. 2.6.28-12-generic SMP.

top - 23:01:41 up 5 days,  7:39,  2 users,  load average: 1.27, 1.08, 0.82
Tasks: 162 total,   3 running, 159 sleeping,   0 stopped,   0 zombie
Cpu0  : 77.0%us,  3.9%sy,  0.0%ni, 18.6%id,  0.0%wa,  0.3%hi,  0.2%si,  
Cpu1  : 13.5%us,  0.8%sy,  0.0%ni, 83.4%id,  2.3%wa,  0.0%hi,  0.0%si,  
Mem:   3606416k total,  3507428k used,    98988k free,    64276k buffers
Swap:   498004k total,    22064k used,   475940k free,  2724908k cached

26418 root      20   0  856m 312m  22m R   88  8.9  34:01.31 Xorg
28270 terrell   20   0  187m  47m  26m S    5  1.4   5:42.07 ktorrent
26606 terrell   20   0  236m  24m  17m S    2  0.7   4:22.59 kwin
26613 terrell   20   0  341m  52m  28m S    1  1.5   1:27.16 plasma-desktop
28394 terrell   20   0  163m  53m  20m S    1  1.5   1:27.39 firefox
29266 terrell   20   0  164m  56m  24m S    0  1.6   0:52.55 thunderbird-bin


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