Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932660AbVKBIs1 (ORCPT ); Wed, 2 Nov 2005 03:48:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932661AbVKBIs1 (ORCPT ); Wed, 2 Nov 2005 03:48:27 -0500 Received: from smtp206.mail.sc5.yahoo.com ([216.136.129.96]:40843 "HELO smtp206.mail.sc5.yahoo.com") by vger.kernel.org with SMTP id S932660AbVKBIs0 (ORCPT ); Wed, 2 Nov 2005 03:48:26 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=dJo1RgwaVE+hvO+PGJAx1XLB1zAbKQlcfadzoNzuleqaCuczrh1vFHIumTRz9/cXduNwkyndoBdwyl004K5y/fXxhvQ8xjRMLJ88akqlSvtve+/6tarelaSbd0QDFYyh08PB5br2p6fYFW6YIAb0OnBYIWO4GBsE7GXqR0hDqTs= ; Message-ID: <43687DC7.3060904@yahoo.com.au> Date: Wed, 02 Nov 2005 19:50:15 +1100 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051007 Debian/1.7.12-1 X-Accept-Language: en MIME-Version: 1.0 To: Gerrit Huizenga CC: Ingo Molnar , Kamezawa Hiroyuki , Dave Hansen , Mel Gorman , "Martin J. Bligh" , Andrew Morton , kravetz@us.ibm.com, linux-mm , Linux Kernel Mailing List , lhms Subject: Re: [Lhms-devel] [PATCH 0/7] Fragmentation Avoidance V19 References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1012 Lines: 26 Gerrit Huizenga wrote: > So, people are working towards two distinct solutions, both of which > require us to do a better job of defragmenting memory (or avoiding > fragementation in the first place). > This is just going around in circles. Even with your fragmentation avoidance and memory defragmentation, there are still going to be cases where memory does get fragmented and can't be defragmented. This is Ingo's point, I believe. Isn't the solution for your hypervisor problem to dish out pages of the same size that are used by the virtual machines. Doesn't this provide you with a nice, 100% solution that doesn't add complexity where it isn't needed? -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/