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SubjectRe: [PATCH] [RSDL-0.30] sched: rsdl improve latencies with differential nice
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On Wednesday 14 March 2007 20:13, Mike Galbraith wrote:
> On Wed, 2007-03-14 at 02:31 +1100, Con Kolivas wrote:
> > Can you try the attached patch please Al and Mike? It "dithers" the
> > priority bitmap which tends to fluctuate the latency a lot more but in a
> > cyclical fashion. This tends to make the max latency bound to a smaller
> > value and should make it possible to run -nice tasks without killing the
> > latency of the non niced tasks. Eg you could possibly run X nice -10 at a
> > guess like we used to in 2.4 days. It's not essential of course, but is a
> > workaround for Mike's testcase.
>
> Oh my. I thought I was all done staring mindlessly at gforce (chinese
> water torture). Oh well, a few more brain cells dying of boredom won't
> kill me I guess ;-) Will give it a shot.

No don't. It's buggy and you missed the warning. Boy were you lucky I was
looking right now.

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