linux-kernel - Re: [PATCH 00/12] perf/x86-ibs: Precise event sampling with IBS for AMD CPUs

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Message-ID: <20120402191123.GA17124@gmail.com>
Date:	Mon, 2 Apr 2012 21:11:23 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Robert Richter <robert.richter@....com>
Cc:	Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 00/12] perf/x86-ibs: Precise event sampling with IBS for
 AMD CPUs


* Robert Richter <robert.richter@....com> wrote:

>  perf record -a -e cpu-cycles:p ...    # use ibs op counting cycle count

Cool - this makes IBS really useful!

Mind posting some perf annotate output of any well-known kernel 
function showing skiddy '-e cpu-cycles' output versus skid-less 
'-e cpu-cycles:p' output?

I'm curious how well this works in practice.

Thanks,

	Ingo
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