linux-kernel - Re: Our failure on tracing tools unification (Was: Re: [RFC][PATCH 00/15] tools: Unify perf and trace-cmd trace event format parsing v2)

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Message-ID: <1335195100.28106.100.camel@gandalf.stny.rr.com>
Date:	Mon, 23 Apr 2012 11:31:40 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Borislav Petkov <bp@...en8.de>,
	Namhyung Kim <namhyung.kim@....com>,
	Jiri Olsa <jolsa@...hat.com>, Arun Sharma <asharma@...com>,
	Michael Rubin <mrubin@...gle.com>,
	David Sharp <dhsharp@...gle.com>,
	Vaibhav Nagarnaik <vnagarnaik@...gle.com>,
	Julia Lawall <julia@...u.dk>, Tom Zanussi <tzanussi@...il.com>
Subject: Re: Our failure on tracing tools unification (Was: Re: [RFC][PATCH
 00/15] tools: Unify perf and trace-cmd trace event format parsing v2)

On Mon, 2012-04-23 at 17:08 +0200, Peter Zijlstra wrote:
> On Mon, 2012-04-23 at 16:47 +0200, Frederic Weisbecker wrote:
> > Ingo doesn't seem to want this library outside perf in order to avoid
> > the fragmentation of the efforts on tracing tools.
> 
> I really don't see the point.. parsing /debug/tracing/events/*/format
> gunk really is separate, furthermore things like powertop et al already
> are separate projects and really need this lib.

Note, powertop has already pulled in the lib into itself, thus we now
have 3 dis-joint locations. I can imagine it getting worse soon.

-- Steve

> 
> I mean, who gives a bother where all that crap lives, if its in the
> kernel tree its all close enough to keep an eye on.. its not like
> kernel/events/ and kernel/trace/ are the same directory.
> 
> Ingo, please could you lighten up and let people get stuff done? Merging
> the two implementations, wherever the result lives, is a better
> situation that two dis-joint implementations. So either let Frederic
> work or do it yourself but don't hand-wave and road-block stuff.


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