linux-kernel - Re: [PATCH v2 2/2] perf record: Show precise number of samples

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Date:	Fri, 28 Nov 2014 18:48:40 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Milian Wolff <mail@...ianw.de>
Subject: Re: [PATCH v2 2/2] perf record: Show precise number of samples

Em Fri, Nov 28, 2014 at 06:56:13PM +0100, Andi Kleen escreveu:
> > > Reported-by: Milian Wolff <mail@...ianw.de>
> > > Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> > 
> > eeeey great, I mean.. finally ;-) 
> 
> Yes I like it too.
> 
> BTW it would be nice if we could show down a break down on how many
> bytes the different options passed to perf record added, by accounting
> the different header fields. That would guide people who suffer
> from too large perf.data files.

That is a good idea, after perf_evsel__parse_sample() we add up the
things that are variable: callchains, branch_stack, etc.

Will implement if nobody does it first :-)

- Arnaldo
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