linux-kernel - Re: [PATCH 0/5] ftrace: to kill a daemon

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Date:	Fri, 08 Aug 2008 09:22:50 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Roland McGrath <roland@...hat.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Ulrich Drepper <drepper@...hat.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Gregory Haskins <ghaskins@...ell.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	"Luis Claudio R. Goncalves" <lclaudio@...g.org>,
	Clark Williams <williams@...hat.com>,
	Sam Ravnborg <sam@...nborg.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: [PATCH 0/5] ftrace: to kill a daemon

On Thu, 2008-08-07 at 21:21 -0400, Steven Rostedt wrote:

> Which would people prefer?  I little longer full build and do the 
> modification on every object, or have a shorter full build, but every 
> build will take that extra minute to do?

I have a very strong preference to do it per obj rather than at the end,
that way it can be distributed and make these fancy smp boxen useful.

Bonus points if you can make distcc dig it.

The vmlinux link path is the thing that is killing build performance,
anything to shorten that is golden, anything increasing it needs _very_
good justification.

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