On Thu, 2006-12-21 at 00:18 +0100, Malte Steiner wrote:
  - formerly I gained some performance by switching to a
light
 Windowmanager like Blackbox. Now I cant read any differences when I
 measure the load with top, whether I use Gnome or Blackbox. Its a bit
 strange in my opinion or did I miss a memo?
  
The Gnome developers finally started taking performance seriously a year
or two ago and they have done a great job.  Also the realtime kernel
makes it much less likely that any display activity will perturb your
audio.
Unless you're stuck with a massively underpowered machine, use the WM
that has the features you want.  They all perform OK these days.
Lee