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Date: Fri, 25 Oct 2013 16:46:43 -0300
From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
To: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@redhat.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Paul Mackerras <paulus@samba.org>, Namhyung Kim <namhyung.kim@lge.com>,
        LKML <linux-kernel@vger.kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Frederic Weisbecker <fweisbec@gmail.com>
Subject: Re: RFP: Fixing "-ga -ag -g fp -g dwarf" was Re: [PATCHSET 0/8] perf
 tools: Fix scalability problem on callchain merging (v5)
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Em Fri, Oct 25, 2013 at 01:22:27PM -0600, David Ahern escreveu:
> On 10/25/13 1:09 PM, Arnaldo Carvalho de Melo wrote:
> >>>I think I did with the second follow up patch: -ga -ag -g fp -g
> >>>dwarf should all work properly with fp the default for -g.

> >>Acked-by: Ingo Molnar <mingo@kernel.org>

> >Can I have this one submitted?
 
> Upon further review, Jiri was correct: that patch handles some of
> the old cases fine, but did not handle others. ie., it just moved
> the bad syntax problem around.

perhaps we can do, at least for now, with what Ingo suggested?

Namely, having:

--call-graph   Require an argument, either "dwarf" or "fp"
-g             Doesn't require anything, uses whatever is configured,
               fp if no explicit config is done in places like
               ~/.perfconfig

Fits with what most people do usually, no?

- Arnaldo