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Date: Fri, 23 Mar 2012 09:47:12 +0100
From: Ingo Molnar <mingo@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>, Vince Weaver <vince@deater.net>,
        Arnaldo Carvalho de Melo <acme@infradead.org>,
        Jiri Olsa <jolsa@redhat.com>,
        linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] perf: mmap_page capabilities and docs
Message-ID: <20120323084712.GE2886@gmail.com>
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* Peter Zijlstra <peterz@infradead.org> wrote:

> Usage:
> 
>   gcc -finstrument-functions -o my_prog main.c
>   LD_PRELOAD=profviz.so ./my_prog
> 
>   xdot prof.dot
> or
>   dot -Tsvg prof.svg prof.dot
> 
> The attached prof.svg it example output of:
> 
>   LD_PRELOAD=./profviz.so ./perf report

Nifty. Could we integrate this into 'perf profviz <myprog>' or 
so [feel free to use a better sub-tool name - 'perf selfprof' ?] 
and thus make it available to mere mortals as well?

'perf selfprof' could also warn about apps that were not built 
with -finstrument-functions.

Thanks,

	Ingo