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From: Ingo Molnar <mingo@elte.hu>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Lénaïc Huard" <lenaic@lhuard.fr.eu.org>,
	"Paul Mackerras" <paulus@samba.org>,
	"Arnaldo Carvalho de Melo" <acme@ghostprotocols.net>,
	linux-kernel@vger.kernel.org
Subject: Re: Shift by one instruction in the perf annotate output
Date: Fri, 27 Jan 2012 11:44:42 +0100	[thread overview]
Message-ID: <20120127104442.GB31782@elte.hu> (raw)
In-Reply-To: <1327660811.2446.155.camel@twins>


* Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:

> On Fri, 2012-01-27 at 11:27 +0100, Ingo Molnar wrote:
>
> > On Core2 CPUs there's PEBS so 'p' will work, but there's no 
> > LBR so the IP-rewinding does not work.
> 
> Not on his thing.. PEBS is a trainwreck on model 15.

ok - i have a model 23, there it works:

[    0.044260] CPU0: Intel(R) Core(TM)2 Duo CPU     T9600  @ 2.80GHz stepping 06
[    0.044996] Performance Events: PEBS fmt0+, Core2 events, Intel PMU driver.

Thanks,

	Ingo

  reply	other threads:[~2012-01-27 10:45 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-26 23:01 Shift by one instruction in the perf annotate output Lénaïc Huard
2012-01-27  6:50 ` Mike Galbraith
2012-01-27  8:15 ` Peter Zijlstra
2012-01-27 10:27   ` Ingo Molnar
2012-01-27 10:40     ` Peter Zijlstra
2012-01-27 10:44       ` Ingo Molnar [this message]
2012-01-27 10:49         ` Peter Zijlstra

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