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SubjectRe: weird X problem - priority inversion?
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@joe-job.com> 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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