linux-kernel - Re: [RFC/PATCH 03/38] perf tools: Move auxtrace_mmap field to struct perf

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Message-ID: <CAM9d7cgXNKmOFgLB7DEOnzyU=rfM=NVs_rBaWMDE4pUcbCD3eQ@mail.gmail.com>
Date:	Tue, 6 Oct 2015 17:56:28 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Jiri Olsa <jolsa@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Stephane Eranian <eranian@...gle.com>,
	David Ahern <dsahern@...il.com>,
	Andi Kleen <andi@...stfloor.org>,
	Adrian Hunter <adrian.hunter@...el.com>
Subject: Re: [RFC/PATCH 03/38] perf tools: Move auxtrace_mmap field to struct perf_evlist

On Sat, Oct 3, 2015 at 3:45 AM, Arnaldo Carvalho de Melo
<acme@...nel.org> wrote:
> Em Fri, Oct 02, 2015 at 02:18:44PM +0900, Namhyung Kim escreveu:
>> Since it's gonna share struct mmap with dummy tracking evsel to track
>> meta events only, let's move auxtrace out of struct perf_mmap.
>
> Is this moving around _strictly_ needed?

In the later patch, I added another perf_mmap instance for dummy
tracking events. So keeping auxtrace_mmap in the perf_mmap is a
duplication.  It's not strictly needed but will waste some memory.

Thanks,
Namhyung
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