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SubjectRe: Linux 2.6.15-rc5: multiuser scheduling trouble
Linus Torvalds wrote:

>Helge,
> did this start at any particular point in time?
>
>
Not that I know of, flash games became popular the last weeks.
I can try some older kernels though.

>Also, the most common case is that somebody has reniced the X server,
>which is just _wrong_.
>
I wish it was that simple. But according to "top", the xservers runs
with NI=0. I believe I got rid of the X renicing at the time the scheduler
was improved. Nobody played flash games at the time though.

I have tried running two tuxracers too, and found this to be somewhat
bursty. Instead of the players enjoying half a cpu each (which
is bearable at sufficiently low resolution), they seem to get bursts of cpu
and short pauses. I never bothered looking more into this as the
pci card always hangs the machine after a while when doing 3D. Instead
I disabled DRI on that xserver. Stability is more important.

Helge Hafting
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