linux-kernel - Re: exposing FSB clock speed in /sys

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Message-ID: <p73bqiaqh32.fsf@bingen.suse.de>
Date:	31 Mar 2007 04:31:29 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Stephane Eranian <eranian@....hp.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: exposing FSB clock speed in /sys

Stephane Eranian <eranian-sDzT885Ts8HQT0dZR+AlfA@...lic.gmane.org> writes:

> It seems that the kernel does not expose the Front-Side Bus (FSN) Clock
> speed to user applications. 

You mean the APIC timer frequency which happens to match the FSB 
on some CPUs? 
 
> Knowledge the the FSB speed is very useful to monitoring tools. It is used
> to compute certain bus-related metrics.

Can you describe those metrics in detail? 

-Andi
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