linux-kernel - Re: privilege levels and kernel mode

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Date:	Sun, 15 Oct 2006 21:24:23 +0200
From:	bert hubert <bert.hubert@...herlabs.nl>
To:	ranjith kumar <ranjit_kumar_b4u@...oo.co.uk>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: privilege levels and kernel mode

On Sun, Oct 15, 2006 at 08:17:16PM +0100, ranjith kumar wrote:

> memory reads, number of cache misses occured while
> running  a "C" program. For that I have to wright some
> values into "Model specific registers of pentium-4
> processor". But those registers can be written ONLY at
> privilege level of zero of pentium4 processor.

Look at 'perfmon' and 'perfctr', they give you what you want.


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