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From: Namhyung Kim <namhyung.kim@lge.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
	Paul Mackerras <paulus@samba.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] perf, x86: Make cycles:p working on SNB
Date: Thu, 24 May 2012 18:01:23 +0900	[thread overview]
Message-ID: <87obpeq7fg.fsf@sejong.aot.lge.com> (raw)
In-Reply-To: <1337846873.9783.66.camel@laptop> (Peter Zijlstra's message of "Thu, 24 May 2012 10:07:53 +0200")

On Thu, 24 May 2012 10:07:53 +0200, Peter Zijlstra wrote:
> On Thu, 2012-05-24 at 10:00 +0200, Stephane Eranian wrote:
>> The PREC_DIST is by design, it is not a work-around of any sort.
>> It is an attempt at getting a better distribution of samples when sampling
>> with inst_retired.
>
> Oh completely agreed, note that my patch used UOPS_RETIRED.ALL. Only
> Namhyung used PREC_DIST, mostly I suspect because he's not stared at all
> these manuals for long yet ;-)

True. :)

Thanks,
Namhyung

  parent reply	other threads:[~2012-05-24  9:03 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-24  3:02 [PATCH] perf, x86: Make cycles:p working on SNB Namhyung Kim
2012-05-24  7:27 ` Peter Zijlstra
2012-05-24  7:41   ` Stephane Eranian
2012-05-24  7:52     ` Peter Zijlstra
2012-05-24  7:57       ` Peter Zijlstra
2012-05-24  8:00         ` Stephane Eranian
2012-05-24  8:07           ` Peter Zijlstra
2012-05-24  8:59             ` Stephane Eranian
2012-05-24  9:01             ` Namhyung Kim [this message]
2012-05-24  7:58       ` Stephane Eranian
2012-05-30 12:16         ` Peter Zijlstra
2012-06-01  7:44           ` Stephane Eranian
2012-05-24  8:59     ` Namhyung Kim
2012-05-24  9:06       ` Stephane Eranian
2012-05-24  8:53   ` Namhyung Kim
2012-05-24  8:59     ` Stephane Eranian

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