From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx146.postini.com [74.125.245.146]) by kanga.kvack.org (Postfix) with SMTP id E30B76B13F0 for ; Wed, 1 Feb 2012 17:11:59 -0500 (EST) Received: by pbaa12 with SMTP id a12so1820192pba.14 for ; Wed, 01 Feb 2012 14:11:59 -0800 (PST) Date: Wed, 1 Feb 2012 14:11:56 -0800 (PST) From: David Rientjes Subject: Re: [Slub cleanup 6/9] slub: Get rid of the node field In-Reply-To: <20120123201708.869898930@linux.com> Message-ID: References: <20120123201646.924319545@linux.com> <20120123201708.869898930@linux.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Lameter Cc: Pekka Enberg , linux-mm@kvack.org On Mon, 23 Jan 2012, Christoph Lameter wrote: > The node field is always page_to_nid(c->page). So its rather easy to > replace. Note that there maybe slightly more overhead in various hot paths > due to the need to shift the bits from page->flags. However, that is mostly > compensated for by a smaller footprint of the kmem_cache_cpu structure (this > patch reduces that to 3 words per cache) which allows better caching. > s/3 words per cache/4 words per cache/ > Signed-off-by: Christoph Lameter Acked-by: David Rientjes -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org