Re: Why HZ on i386 is 100 ?

george anzinger (george@mvista.com)
Sun, 28 Apr 2002 10:34:45 -0700

Alan Cox wrote:
>
> > so, what? We will have a timer interrupt prior to the slice end, and
> > will have to make this decision all over again. However, the real rub
>
> Only on unusual occasions.
>
> > is that we have to keep track of elapsed time and account for that (i.e.
> > shorten the remaining slice) not only in the timer interrupt, but each
>
> We do anyway

Yes, but now we do all this in the timer tick, not in schedule(). This
occures much less often.
>
> Alan

-- 
George Anzinger   george@mvista.com
High-res-timers:  http://sourceforge.net/projects/high-res-timers/
Real time sched:  http://sourceforge.net/projects/rtsched/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml
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