Re: weird X problem - priority inversion?

[David Lang]

remember that the low pri screensaver is just generating the image to be 
displayed, it's the high pri X server that's actually doing the work to 
display it.

David Lang

On Mon, 23 May 2005, Ingo Molnar wrote:

> does this still occur with the latest tree? (.47-05 or later)
>
> 	Ingo
>
> * Lee Revell <rlrevell@xxxxxxxxxxx> wrote:
>
> > I am having a problem with the RT preempt kernels where xscreensaver
> > will cause the X server to consume excessive CPU, starving other
> > processes.  This should not happen as xscreensaver runs at the highest
> > nice value.  It seems that there's some kind of priority inversion
> > happening between the high prio X server and low prio xscreensaver.
> >
> > This seems like an X problem to me, but could the kernel be involved?
> >
> > Lee
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