linux-kernel - Re: perf & rasd integration plan

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Message-ID: <20141006145856.GA14113@kernel.org>
Date:	Mon, 6 Oct 2014 11:58:56 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Robert Richter <rric@...nel.org>
Cc:	Jean Pihet <jean.pihet@...aro.org>, Borislav Petkov <bp@...en8.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Fu Wei <fu.wei@...aro.org>, Jiri Olsa <jolsa@...hat.com>,
	David Ahern <dsahern@...il.com>, Ingo Molnar <mingo@...nel.org>
Subject: Re: perf & rasd integration plan

Em Mon, Oct 06, 2014 at 11:07:26AM +0200, Robert Richter escreveu:
> On 30.09.14 10:24:16, Arnaldo Carvalho de Melo wrote:
> > Em Tue, Sep 30, 2014 at 11:06:21AM +0200, Jean Pihet escreveu:
> > > The plan is to move the small and generic functions first: util,
> > > xyarray, cpumap, thread_map etc; then evlist, evsel, trace-event,
> > > trace-event-parse; and finally integrate rasd into the tools/ dir.

> > > Any thought? Can evlist, evsel etc. be moved at once?

> > > Patches should come soon, when time allows.

> > Why don't you add it to tools/rasd/ and in tools/rasd/Makefile you just
> > go on and add tools/perf/util/evlist.o et all to be linked directly, as
> > a first step.

> > Then, as a second step, we can create a tools/lib/perf/evlist.c having
> > what is currently used by both tools/perf/ and tools/rasd/, i.e. what is
> > proven to be useful for something other than perf.
 
> It would be good to have tools/lib/perf or so with some base
> implementation to setup and connect to perf buffers. This is useful
> for tools not only in tools/. The rasd would be a good reference for

Agreed, we can use rasd as a reference, I'm now looking for the git repo
url to see what it is using to prototype how I think this should be
done.

- Arnaldo

> this regardless if it is in tools/ or not. I am not sure whether and
> when rasd will be moved there.

- Arnaldo
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