> > > This second patch is just a small optimization to the code calling
> > > the scheduling code. With a program like rc5des running (nice +19)
> > > in the background and NOTHING in the foreground Linux still goes
> > > through the scheduler 50 times a second!
> >
> > hm, it should only go 5 times a second into the scheduler if this is
> > the only process running. Are you sure that it's 50 times a second?
>
> A nice +19 process only has a timeslice of 10 (20 if it's
> alone) milliseconds. That will give 50 reschedules and a
(right.)
> lot of cache corruption per second...
what cache-corruption do you mean? There is no cache corruption if only
one process is running (per CPU), and your patch has absolutely no effect
when we run more than 1 nice+19 CPU-eater process.
-- mingo
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