From owner-freebsd-arch@FreeBSD.ORG  Wed Feb 28 20:23:23 2007
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To: Nate Lawson <nate@root.org>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Wed, 28 Feb 2007 11:26:24 PST."
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Date: Wed, 28 Feb 2007 20:23:21 +0000
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Cc: arch@freebsd.org, current@freebsd.org
Subject: Re: PATCH - update TSC freq when cpufreq changes it 
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In message <45E5D760.4030409@root.org>, Nate Lawson writes:
>Poul-Henning Kamp wrote:

>It's a valid question, but mostly irrelevant.

Not at all.  It may be a lot cheaper for us to just use the
value from the ACPI than to calibrate.  Only in the increasingly
rare case where TSC is used for timecounter AND the system isn't
using NTP is the precise frequency really interesting.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.