linux-kernel - Re: tracepoint maintainance models

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Message-ID: <450E1F6F.7040401@opersys.com>
Date:	Mon, 18 Sep 2006 00:24:15 -0400
From:	Karim Yaghmour <karim@...rsys.com>
To:	Theodore Tso <tytso@....edu>, Ingo Molnar <mingo@...e.hu>,
	Karim Yaghmour <karim@...rsys.com>,
	Nicholas Miell <nmiell@...cast.net>,
	Paul Mundt <lethal@...ux-sh.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>, Jes Sorensen <jes@....com>,
	Andrew Morton <akpm@...l.org>,
	Roman Zippel <zippel@...ux-m68k.org>,
	Tom Zanussi <zanussi@...ibm.com>,
	Richard J Moore <richardj_moore@...ibm.com>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Michel Dagenais <michel.dagenais@...ymtl.ca>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Christoph Hellwig <hch@...radead.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	William Cohen <wcohen@...hat.com>,
	"Martin J. Bligh" <mbligh@...igh.org>
Subject: Re: tracepoint maintainance models


Theodore Tso wrote:
> I *think* what Karim is trying to claim is that LTT also has some
> dynamic capabilities, and isn't a pure static tracing system.  But if
> that's the case, I don't understand why LTT and SystemTap can't just
> merge and play nice together....

That's been the thrust of my intervention here. There is already a
great deal of common ground between the respective teams. There are
historical "incidents", if we want to call them as such, which
prompted such separation. There is a common desire of interfacing,
and much talk has been done on the topic. From my point of view,
I think it's fair to say that the SystemTap folks have been
particularly wary of interfacing with ltt based mainly on its
controversial heritage. If the signal *and* endorsement from kernel
developers is that SystemTap and LTTng should "play nice together",
then, I think, everything is in place to accelerate that.

Karim
-- 
President  / Opersys Inc.
Embedded Linux Training and Expertise
www.opersys.com  /  1.866.677.4546
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