Re: Why HZ on i386 is 100 ?

Mark Mielke
2002-04-16T17:17:21Z

On Tue, Apr 16, 2002 at 12:32:25PM -0300, Rik van Riel wrote:
> On Tue, 16 Apr 2002, Mark Mielke wrote:
> > Increasing the HZ can only improve responsiveness, however, there is a
> > cost (mentioned by others). The cost is that the scheduler is executed
> > more often per second. If the scheduler does the same amount of work
> > per tick, but there are more ticks per second, the scheduler does more
> > work overall, and the CPU is free for use by the processes less.
> Why are you discussing Linux 1.2 ?
> Linux is not running the scheduler each cpu tick and hasn't
> done this for years.

Hmm... sorry... :-) Too early in the morning...

mark

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