linux-kernel - Re: [PATCH] jump label: Reduce the cycle count by changing the link order

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Date:	Mon, 08 Aug 2011 19:55:33 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Arnaud Lacombe <lacombar@...il.com>
Cc:	Jason Baron <jbaron@...hat.com>, rostedt@...dmis.org,
	pjt@...gle.com, mingo@...e.hu, rth@...hat.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] jump label: Reduce the cycle count by changing the link
 order

On Mon, 2011-08-08 at 13:52 -0400, Arnaud Lacombe wrote:
> >> Also, pjt mentioned on IRC that mucking about with link order is
> >> something google is not unfamiliar with.. could we use some sort of
> >> runtime feedback to generate linker layout maps or so? That seems like a
> >> more scalable version than randomly mucking about with Makefiles :-)
> >
> > Agreed. Definitely a good area to research. However, until we have that done, I
> > think this patch makes sense.
> >
> this might be a dumb question as I do not know much about that, but
> couldn't hot code be put in their own section ? 

Ah, but what is the hot code? The whole problem statement is finding
that.
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