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Re: performance problem

On Fri, 2005-01-28 at 17:36 -0600, Ron Johnson wrote:
> On Sat, 2005-01-29 at 00:22 +0100, tobias wrote:
> >  
> > But: there is a strange performance problem which wasn't there before. 
> > Using Gnome or KDE every couple of seconds the mouse poiner "stumbles", 
> > regardless if I use a USB or ps/2 device. There is also a short delay 
> > moving windows or even displaying text while typing. Moreover smooth 
> > playing of mp3s is not possible - seems to be the same problem.
> > 
> > Using top or similar programs I wasn't able to identify a process which 
> > eats up my system performance. The CPU has something around 5%, load 
> > average around 0.4.
> > 
> > Has anybody encountered similar problems? I would appreciate hints how 
> > to deal with this problem.
> > Or could it be that the hardware is too old? It's a 700MHz Athlon, 
> > 512MB... should be able to play mp3, I think. On fedora, there was a 2.4 
> > kernel, now it's 2.6.8. Naively, I would expected a performance gain.
> Could it be that your disk(s) aren't running in DMA mode?

how does DMA help? should this be on for all machines (eg mine!)?
Michael Bane
Atmospheric Physics Group
University of Manchester

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