linux-kernel - Re: [RFC tracing] Common Trace Format for Linux (v1.1)

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Date:	Thu, 11 Nov 2010 10:45:27 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
cc:	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	David Sharp <dhsharp@...gle.com>,
	Arjan van de Ven <arjan@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: [RFC tracing] Common Trace Format for Linux (v1.1)

Mathieu,

On Wed, 10 Nov 2010, Mathieu Desnoyers wrote:

> * Thomas Gleixner (tglx@...utronix.de) wrote:
> [...]
> 
> > The requirement list has been beaten to death several times already
> > along with the various options of trace formats, so we really are at
> > the point where you folks need to sit down and come up with real code
> > which can be discussed and improved on a technical base.
> 
> I understand and share your frustration about things having been standing still
> for way too long.
> 
> In order to get things rolling, I hereby append my trace format proposal as RFC.
> I did implement the core elements of it already in the BabelTrace trace
> converter project, so it's not one of these dreaded "design by committee without
> any understanding of the practicality aspects" standards. I try make sure it
> translates to something realistic and useful.
> 
> Feedback is welcome, thanks,
> 
> Mathieu
> 
> RFC: Common Trace Format Proposal for Linux (v1.1)

Groan. Did you read what I wrote ?

> >                                              ... so we really are at
> > the point where you folks need to sit down and come up with real code
> > which can be discussed and improved on a technical base.

Your reaction on this is to send yet another proposal, which has not
really anything new in it.

What we are waiting for is a sensible incremental patch series, which
extends or replaces functionality in the existing perf ABI up to the
point, where we can eventually see the need for a sensible
replacement. That's the way we work, not with tons of proposals.

Thanks,

	tglx
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