The timer interupt is what calls schedule...
It's set by default on x86 boxes to tick at 100Hz.
Tasks can also preempt themselves, by sleeping or by making certian
syscalls.
On Wed, 17 Jun 1998, Marc Bechler wrote:
> Hi all!
>
> This morning I was really worried about the scheduling: I thought the
> Linux-scheduling is preemptive; but I have not found a periodic timer that
> preempts the tasks (after 20 ticks) ... or does a task voluntarily preempt
> hisself???
>
> marc
>
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