Re: Why HZ on i386 is 100 ?

Davide Libenzi
2002-04-16T18:02:52Z

On Tue, 16 Apr 2002, David Mosberger wrote:

> >>>>> On Tue, 16 Apr 2002 10:18:18 -0700 (PDT), Davide Libenzi <davidel@xmailserver.org> said:
>
> Davide> i still have pieces of paper on my desk about tests done on
> Davide> my dual piii where by hacking HZ to 1000 the kernel build
> Davide> time went from an average of 2min:30sec to an average
> Davide> 2min:43sec. that is pretty close to 10%
>
> Did you keep the timeslice roughly constant?

it was 2.5.1 time and it was still ruled by TICK_SCALE that made the
timeslice to drop from 60ms ( 100HZ ) to 21ms ( 1000HZ ).

- Davide