Re: [kde] Slow display access in konqueror

On Saturday 29 April 2006 08:47, Pavel Troller wrote:
Hi!

And finally, about the problem: Generally, the system is very fast. KDE
starts up for about 6 seconds for the first time on a freshly booted system
(bottleneck in the hard disk bandwidth, even it's a SATA-II) and subsequent
starts are below 2 secs. Amazing! However, *some* graphical operations are
*unbelievably* slow. For example, rendering a page in konqueror occurs in one -
two steps, but every step takes about 3 seconds (!) and one may observe the
process, how the image is slowly appearing from top to bottom of the screen.
Please be aware that it's not slow khtml rendering, it's slow copying of the
rendered image to the physical window. Scrolling of the page is a pain - every
small movement of the scroll slider causes a "wave" going upside down and
redrawing the contents. I think that a dialog box saying "Please wait, putting
a pixel" would be appropriate here :-).
This behaviour contrasts with the rest of the system - even the graphical
actions like appearing/disappearing of windows with full contents are nicely
fast. I've found a second app - kpat - which probably exhibits something
similar. The card movement is very choppy and it seems that the system is
totally busy when playing a demo :-). However, I can play any video in kaffeine
or kmplayer without a glich and with CPU load of 0.20 :-).

Does anybody have any hint, what's the possible cause and how to fix it ?

Not much of a hint, but:
* Which version of KDE and X?
* What process eats CPU according to top? Konqueror or X?
* Try older KDE and/or X version
--
vda
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