linux-kernel - Re: [tip:perf/core] perf hists: Introduce perf

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Message-ID: <20120912184815.GC557@infradead.org>
Date:	Wed, 12 Sep 2012 15:48:15 -0300
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Robert Richter <robert.richter@....com>
Cc:	Namhyung Kim <namhyung@...nel.org>, mingo@...nel.org,
	hpa@...or.com, paulus@...ba.org, linux-kernel@...r.kernel.org,
	a.p.zijlstra@...llo.nl, namhyung.kim@....com, tglx@...utronix.de,
	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:perf/core] perf hists: Introduce perf_hpp for hist period
 printing

Em Wed, Sep 12, 2012 at 07:26:41PM +0200, Robert Richter escreveu:
> On 09.09.12 01:54:39, tip-bot for Namhyung Kim wrote:
> 
>  # perf record -e cycles -aq sleep 1 ; perf report -n --sort comm,dso | sed '/%/q;d' ; \
>    perf record -e cycles -aq sleep 1 | perf report -n --sort comm,dso | sed '/%/q;d'
>      99.86%        11804       swapper  [kernel.kallsyms]
>      91.57%      swapper  [kernel.kallsyms]
>            ^^^^^^
>            number of samples missing
> 
> Moving and changing the code at the same time make the patch
> unreviewable. So no clue that's the problem here.

Yeah, that was unfortunate (movind and changing), we need to try hard
not to do that...

Anyway, Namhyung, can you take a look at this?

- Arnaldo
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