linux-kernel - Re: [PATCH RESEND] tools: add power/x86/turbostat

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Message-ID: <AANLkTi=FK0em5qYV0wf_SMpbC_SrOYYB0i0w1L5WS+Ec@mail.gmail.com>
Date:	Mon, 15 Nov 2010 15:16:47 -0200
From:	Otavio Salvador <otavio@...ystems.com.br>
To:	Len Brown <lenb@...nel.org>
Cc:	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-pm@...ts.linux-foundation.org, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND] tools: add power/x86/turbostat - v2

On Mon, Nov 15, 2010 at 2:01 PM, Len Brown <lenb@...nel.org> wrote:
> From: Len Brown <len.brown@...el.com>
>
> turbostat displays actual processor frequency on modern
> Intel processors.  Note that this capability depends on free-running
> APERF and MPERF MSRs, which were cleared by the acpi_cpufreq
> driver up through Linux-2.6.29.
>
> On Intel Core i3/i5/i7 (Nehalem) and newer processors,
> turbostat displays residency in idle power saving states.
>
> See the comments in the source code for example usage.
>
> Signed-off-by: Len Brown <len.brown@...el.com>
> Reviewed-by: Otavio Salvador

Reviewed-by: Otavio Salvador <otavio@...ystems.com.br>

-- 
Otavio Salvador                  O.S. Systems
E-mail: otavio@...ystems.com.br  http://www.ossystems.com.br
Mobile: +55 53 9981-7854         http://projetos.ossystems.com.br
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