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To: Robert Watson <rwatson@FreeBSD.org>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 01 Nov 2005 08:02:02 GMT."
	<20051101080018.R18382@fledge.watson.org> 
Date: Tue, 01 Nov 2005 09:11:40 +0100
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Cc: freebsd-current@freebsd.org, "M. Warner Losh" <imp@bsdimp.com>
Subject: Re: TSC instead of ACPI: powerd doesn't work anymore (to be
	expected?) 
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In message <20051101080018.R18382@fledge.watson.org>, Robert Watson writes:

>One nice thing about the Linux TSC model, despite its limitations, is that 
>it provides a middle ground between incrementing the clock in ticks and 
>providing a more continuous measure of time, by allowing interpolation 
>between ticks.

Which is also exactly what we do.

The only real difference is that Linux trusts the TSC in cases where
we don't.

-- 
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.