From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with SMTP id B6D416B01EE for ; Tue, 6 Apr 2010 10:45:35 -0400 (EDT) Message-ID: <4BBB48D7.6080303@redhat.com> Date: Tue, 06 Apr 2010 10:44:39 -0400 From: Rik van Riel MIME-Version: 1.0 Subject: Re: [PATCH 00 of 41] Transparent Hugepage Support #17 References: <20100405232115.GM5825@random.random> <20100406011345.GT5825@random.random> <4BBB052D.8040307@redhat.com> <4BBB2134.9090301@redhat.com> <20100406131024.GA5288@laptop> In-Reply-To: <20100406131024.GA5288@laptop> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Nick Piggin Cc: Avi Kivity , Linus Torvalds , Andrea Arcangeli , Pekka Enberg , Ingo Molnar , Andrew Morton , linux-mm@kvack.org, Marcelo Tosatti , Adam Litke , Izik Eidus , Hugh Dickins , Mel Gorman , Dave Hansen , Benjamin Herrenschmidt , Mike Travis , KAMEZAWA Hiroyuki , Christoph Lameter , Chris Wright , bpicco@redhat.com, KOSAKI Motohiro , Balbir Singh , Arnd Bergmann , "Michael S. Tsirkin" , Peter Zijlstra , Johannes Weiner , Daisuke Nishimura List-ID: On 04/06/2010 09:10 AM, Nick Piggin wrote: > I don't really agree with how virtualization problem is characterised. > Xen's way of doing memory virtualization maps directly to normal > hardware page tables so there doesn't seem like a fundamental > requirement for more memory accesses. Xen also uses nested paging whereever possible, because shadow page tables are even slower than nested page tables. -- 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