From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <44C7C261.6050602@colorfullife.com> Date: Wed, 26 Jul 2006 21:28:33 +0200 From: Manfred Spraul MIME-Version: 1.0 Subject: Re: [patch 2/2] slab: always consider arch mandated alignment 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> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: Pekka J Enberg , Heiko Carstens , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Martin Schwidefsky List-ID: Christoph Lameter wrote: >So Redzoning etc will now be diabled regardless even if >ARCH_SLAB_MINALIGN is not set but another alignment is given to >kmem_cache_alloc? > > kmem_cache_create(). >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. -- Manfred -- 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