From owner-freebsd-current@FreeBSD.ORG  Thu Apr 10 06:14:41 2008
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To: gnn@freebsd.org
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Thu, 10 Apr 2008 11:23:31 +0900."
	<m2d4oy8n30.wl%gnn@neville-neil.com> 
Date: Thu, 10 Apr 2008 06:14:38 +0000
Message-ID: <53208.1207808078@critter.freebsd.dk>
Sender: phk@critter.freebsd.dk
Cc: current@freebsd.org
Subject: Re: TSC Timecounter and multi-core/SMP 
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In message <m2d4oy8n30.wl%gnn@neville-neil.com>, gnn@freebsd.org writes:
>Howdy,
>
>Is the TSC timecounter synchronized across multiple cores and/or
>processors?  A quick search seems to indicate it's not but I'd like to
>find a definitive reference on the TSC.

The answer is: It may be, and there is no easy way to find out.

-- 
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.