Re: [patch] idle_task was wasting a lot of CPU

Matthias Urlichs (smurf@noris.de)
30 Nov 1998 22:25:55 +0100

Rik van Riel <H.H.vanRiel@phys.uu.nl> writes:
>
> if (current == idle_task || p->counter >= current->counter ||
> p->policy != SCHED_OTHER)
>
That doesn't work too well with SMP.

> occurring situations placed first. An alternative is
> to have the idle task mark itself with SCHED_YIELD so
> the != SCHED_OTHER test will pass. Since the idle task
> is never subjected to goodness() the SCHED_YIELD will
> never be cleared and we can keep on using the trick...
>
Better.

-- 
Matthias Urlichs  |  noris network GmbH   |   smurf@noris.de  |  ICQ: 20193661


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