linux-kernel - Re: tracepoint maintainance models

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Date:	Mon, 18 Sep 2006 06:09:55 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Karim Yaghmour <karim@...rsys.com>
Cc:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	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>,
	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


* Karim Yaghmour <karim@...rsys.com> wrote:

> By no stretch of the english language did I insult you. [...]

let me point it out then:

>> That has been your own personal experience of such things. 
>> Fortunately by now you've provided to casual readers ample proof that 
>> such experience is but limited and therefore misleading.

you wrote this disputing a point of mine that Mathieu acknowledged 
meanwhile, and which you now acknowledge in this mail too:

> So, yes Ingo, you "wont be able to extract 'x' from the MARK(event, a) 
> markup" using just a "static" tracer. [...]

and as i wrote to Mathieu, this differene in markup can have performance 
impact on the code generated by gcc, so it can be of practical 
relevance. Unfortunately i dont have much influence on the fact that it 
takes so much time for you to understand and acknowledge such simple 
points: in this highly trivial case it was 3(!) mail exchanges =B-) 
Yuck! I should really heed others' advice that i should simply stop 
replying to you ... but i have to admit that often it's so tempting.

	Ingo
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