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Date: Fri, 5 Jun 2015 11:08:47 -0300
From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>, linux-kernel@vger.kernel.org,
        Borislav Petkov <bp@suse.de>, David Ahern <dsahern@gmail.com>,
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        "Nam T . Nguyen" <namnguyen@chromium.org>,
        Paul Mackerras <paulus@samba.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>, Simon Que <sque@chromium.org>,
        Stephane Eranian <eranian@google.com>
Subject: Re: [GIT PULL 00/37] perf/core improvements and fixes
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Em Fri, Jun 05, 2015 at 04:21:44PM +0300, Adrian Hunter escreveu:
> On 27/05/15 15:35, Arnaldo Carvalho de Melo wrote:
> > Em Wed, May 27, 2015 at 09:38:47AM +0200, Ingo Molnar escreveu:
> >> So this stuff is user and developer hostile at the moment. We can push this 
> >> towards Linus only if this becomes _much_ more user and developer friendly. Near 
> >> zero documentation and near zero comments in the code don't cut it really.

> > Adrian, can you try to address this further, please?

> > Something like a handholding session, so that we don't have to dig thru
> > all the csets or patch series cover letters, telling:
> > 
> > 1. What hardware one has to have to be able to test it
> > 
> > 2. First command to use
> > 
> > 3. What will be generated, how much space (a lot?) it will use on the
> >    perf.data file, etc.
> > 
> > 5. What commands have to be used on this perf.data file and what to
> >    expect from it.
> > 
> > I.e. a HOWTO that starts with a as short as possible description on how
> >  to use it for the very first time, for people never exposed to Intel PT
> > but that can benefit from using it.
> 
> I sent the patches again a week ago, but perhaps no one noticed.  They are here:
> 
> 	http://marc.info/?l=linux-kernel&m=143290658028132
> 
> Comments welcome :-)

I saw it, was just busy with other stuff and was waiting for other
people to chime in, will look for that 'handholding session' and also
for a broadwell machine were I can try to follow it.

- Arnaldo