Originally Posted by ShiningArcanine
I have KDE 4.4.5 and CPU usage spikes to about 20% from 2% when I move a window around.
This is with xorg-server 1.8 and nvidia-drivers 256.52.
with composition enabled in Kwin a window move yields 10% CPU usage on my sistem: 5% kwin and 5% Xorg
it's not the end of the world but eh...