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Date: Tue, 16 Apr 2002 18:07:27 -0700 (PDT)
From: Davide Libenzi <davidel@xmailserver.org>
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To: Robert Love <rml@tech9.net>
cc: davidm@hpl.hp.com, Linus Torvalds <torvalds@transmeta.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Why HZ on i386 is 100 ?
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On 16 Apr 2002, Robert Love wrote:

> On Tue, 2002-04-16 at 20:49, David Mosberger wrote:
>
> > But since it's popular, I did measure it quickly on a relatively
> > slow (old) Itanium box: with 100Hz, the kernel compile was about
> > 0.6% faster than with 1024Hz (2.4.18 UP kernel).
>
> One question I have always had is why 1024 and not 1000 ?
>
> Because that is what Alpha does?  It seems to me there is no reason for
> a power-of-two timer value, and using 1024 vs 1000 just makes the math
> and rounding more difficult.

maybe because of the old TICK_SCALE macro ...



- Davide


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