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To: Poul-Henning Kamp <phk@phk.freebsd.dk>
References: <39210.1099557885@critter.freebsd.dk>
From: des@des.no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=)
Date: Thu, 04 Nov 2004 17:23:05 +0100
In-Reply-To: <39210.1099557885@critter.freebsd.dk> (Poul-Henning Kamp's
 message of "Thu, 04 Nov 2004 09:44:45 +0100")
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cc: arch@freebsd.org
Subject: Re: HEADSUP:  HZ=1000 by default on i386
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Poul-Henning Kamp <phk@phk.freebsd.dk> writes:
> So pending any really good arguments to the contrary I plan to increase
> HZ to 1000 on i386 this weekend.

two good arguments:

  1) I'm already working on this, and you know it, since I asked you
     about it in Karlsruhe.

  2) 1000 is not a good choice, because we can't approximate it well
     with the 8254.  1268 is better, 1381 is even better, 1903 is the
     best we can do between 1000 and 2000, 2299 is the best we can do
     between 1000 and 5000.

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no