Re: Why HZ on i386 is 100 ?

Rik van Riel (riel@conectiva.com.br)
Tue, 16 Apr 2002 12:32:25 -0300 (BRT)


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.

regards,

Rik

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