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From: David Mosberger <davidm@napali.hpl.hp.com>
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Date: Tue, 16 Apr 2002 23:17:35 -0700
To: Robert Love <rml@tech9.net>
Cc: Linus Torvalds <torvalds@transmeta.com>, Mark Mielke <mark@mark.mielke.cc>,
        davidm@hpl.hp.com, Davide Libenzi <davidel@xmailserver.org>,
        linux-kernel@vger.kernel.org
Subject: Re: Why HZ on i386 is 100 ?
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>>>>> On 17 Apr 2002 02:01:42 -0400, Robert Love <rml@tech9.net> said:

  Robert> Exactly - this was my issue.  So what _was_ the rationale
  Robert> behind Alpha picking 1024 (and others following)?

Picking a timer tick is a bit like picking the color of a
window. Everybody has an opinion and there is no truly "right" choice.
I guarantee you whatever you pick, someone will come along and say:
why not X instead?

A power-of-2 value obviously makes it easy to divide by HZ.

  Robert> More importantly, can we change to 1000?

On ia64, you can make it anything you want.  User-level will pick up
the current value from sysconf(_SC_CLK_TCK).

	--david
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