linux-kernel - Re: [RFC][PATCH v2] slub: Keep page and object in sync in slab_alloc

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Message-ID: <1358770782.23981.8.camel@gandalf.local.home>
Date:	Mon, 21 Jan 2013 07:19:42 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Joonsoo Kim <iamjoonsoo.kim@....com>
Cc:	Christoph Lameter <cl@...ux.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Pekka Enberg <penberg@...nel.org>,
	Matt Mackall <mpm@...enic.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	RT <linux-rt-users@...r.kernel.org>,
	Clark Williams <clark@...hat.com>,
	John Kacur <jkacur@...il.com>,
	"Luis Claudio R. Goncalves" <lgoncalv@...hat.com>
Subject: Re: [RFC][PATCH v2] slub: Keep page and object in sync in
 slab_alloc_node()

On Mon, 2013-01-21 at 17:11 +0900, Joonsoo Kim wrote:

> Hello.
> I have one stupid question just for curiosity.
> Does the processor re-order instructions which load data from same cacheline?
> 

Probably not, but I wouldn't have generic code assuming cacheline sizes.

-- Steve



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