From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 26 Jul 2006 12:31:01 -0700 (PDT) From: Christoph Lameter Subject: Re: [patch 2/2] slab: always consider arch mandated alignment In-Reply-To: <44C7C261.6050602@colorfullife.com> Message-ID: References: <20060722162607.GA10550@osiris.ibm.com> <20060723073500.GA10556@osiris.ibm.com> <20060723162427.GA10553@osiris.ibm.com> <20060726085113.GD9592@osiris.boeblingen.de.ibm.com> <20060726101340.GE9592@osiris.boeblingen.de.ibm.com> <20060726105204.GF9592@osiris.boeblingen.de.ibm.com> <44C7AF31.9000507@colorfullife.com> <44C7B842.5060606@colorfullife.com> <44C7C261.6050602@colorfullife.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Manfred Spraul Cc: Pekka J Enberg , Heiko Carstens , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Martin Schwidefsky List-ID: On Wed, 26 Jul 2006, Manfred Spraul wrote: > > So we sacrifice the ability to worsen the performance of slabs by > > misaligning them for debugging purposes. > > > If a slab user can live with misaligned objects, then he shouldn't set align. > Thus we do not sacrifice anything. A slab user is setting alignment in order to optimize performance not for correctness. Most users that I know of can live with misalignments. If that would not be the case then this code would never have worked. -- 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/ . Don't email: email@kvack.org