From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932316AbYEFTt2 (ORCPT ); Tue, 6 May 2008 15:49:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756907AbYEFTtS (ORCPT ); Tue, 6 May 2008 15:49:18 -0400 Received: from mx1.redhat.com ([66.187.233.31]:50273 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754193AbYEFTtQ (ORCPT ); Tue, 6 May 2008 15:49:16 -0400 Date: Tue, 6 May 2008 15:46:12 -0400 From: Rik van Riel To: schwidefsky@de.ibm.com Cc: Hugh Dickins , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, virtualization@lists.osdl.org, akpm@linux-foundation.org, nickpiggin@yahoo.com.au, zach@vmware.com, frankeh@watson.ibm.com, rusty@rustcorp.com.au, jeremy@goop.org, andrea@qumranet.com, clameter@sgi.com, a.p.zijlstra@chello.nl Subject: Re: [patch 0/6] Guest page hinting version 6. Message-ID: <20080506154612.58cc3070@cuia.bos.redhat.com> In-Reply-To: <1210087982.31803.32.camel@localhost> References: <20080312132132.520833247@de.ibm.com> <1210087982.31803.32.camel@localhost> Organization: Red Hat, Inc X-Mailer: Claws Mail 3.3.1 (GTK+ 2.12.5; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 06 May 2008 17:33:02 +0200 Martin Schwidefsky wrote: > On Thu, 2008-03-13 at 16:57 +0000, Hugh Dickins wrote: > > It's very encouraging to see Jeremy and Rusty weighing in. I hope > > Zach will too, and I've added Andrea: their support would count a lot. > > You have Nick on the list, good, I've added Christoph and Peter > > (if you do resend, linux-mm might prove more useful than linux-kernel). > > > > With support from rival virtualizers, > > I do think you've a good chance of getting in. > > Traffic on the guest page hinting patches died down again. Until another > user shows up I guess that's it for the full version. I suspect one of the problems is that there are too many state transitions to have it implemented with a low overhead on anything but S390, and even there you need milicoded instructions to handle things. If the number of transitions can be reduced, page hinting could be useful for KVM, too. -- All Rights Reversed