linux-kernel - Re: [PATCH] perf, x86: Make cycles:p working on SNB

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Message-ID: <CABPqkBTcBG8nqsj0O9HGNxEJko+R30EwXQoHGguQ+PGWDsFRyA@mail.gmail.com>
Date:	Thu, 24 May 2012 10:59:47 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	Namhyung Kim <namhyung.kim@....com>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Paul Mackerras <paulus@...ba.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] perf, x86: Make cycles:p working on SNB

On Thu, May 24, 2012 at 10:53 AM, Namhyung Kim <namhyung.kim@....com> wrote:
> Hi, Peter
>
> On Thu, 24 May 2012 09:27:51 +0200, Peter Zijlstra wrote:
>> Also I'm thinking you're using SNB-EP (you didn't say) since regular SNB
>> has PEBS disabled as per (6a600a8b).
>>
>
> I don't actually have an idea whether it's a SNB-EP or regular
> one. ;-p Is Model 45 a SNB-EP?
>
Yes.

> namhyung@...ong:perf$ head /proc/cpuinfo
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 6
> model           : 45
> model name      : Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz
> stepping        : 7
> microcode       : 0x704
> cpu MHz         : 1200.000
> cache size      : 12288 KB
> physical id     : 0
>
>
> Thanks,
> Namhyung
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