From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [Qemu-devel] [Bug 1100843] Re: Live Migration Causes Performance Issues Date: Mon, 07 Oct 2013 11:55:20 +0200 Message-ID: <52528508.4030204@redhat.com> References: <20130117163740.7157.55600.malonedeb@gac.canonical.com> <20130926203354.30826.10562.malone@soybean.canonical.com> <52516C4A.6080508@gmail.com> <525256FC.6060608@dlhnet.de> <525280C7.2050402@redhat.com> <525283A6.1070605@dlhnet.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Zhang Haoyu , Bug 1100843 <1100843@bugs.launchpad.net>, gleb@redhat.com, eblake@redhat.com, quintela@redhat.com, afaerber@suse.de, xiaoguangrong@linux.vnet.ibm.com, mtosatti@redhat.com, kvm@vger.kernel.org, mst@redhat.com, qemu-devel To: Peter Lieven Return-path: Received: from mx1.redhat.com ([209.132.183.28]:49428 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752067Ab3JGJzg (ORCPT ); Mon, 7 Oct 2013 05:55:36 -0400 In-Reply-To: <525283A6.1070605@dlhnet.de> Sender: kvm-owner@vger.kernel.org List-ID: Il 07/10/2013 11:49, Peter Lieven ha scritto: >> It's in general not easy to do this if you take non-x86 targets into >> account. > What about the dirty way to zero out all non zero pages at the beginning of > ram_load? I'm not sure I follow? Paolo From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50805) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VT7XW-0003Ia-5T for qemu-devel@nongnu.org; Mon, 07 Oct 2013 05:55:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VT7XK-0000EG-Tf for qemu-devel@nongnu.org; Mon, 07 Oct 2013 05:55:46 -0400 Received: from mx1.redhat.com ([209.132.183.28]:62533) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VT7XK-0000EB-H7 for qemu-devel@nongnu.org; Mon, 07 Oct 2013 05:55:34 -0400 Message-ID: <52528508.4030204@redhat.com> Date: Mon, 07 Oct 2013 11:55:20 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <20130117163740.7157.55600.malonedeb@gac.canonical.com> <20130926203354.30826.10562.malone@soybean.canonical.com> <52516C4A.6080508@gmail.com> <525256FC.6060608@dlhnet.de> <525280C7.2050402@redhat.com> <525283A6.1070605@dlhnet.de> In-Reply-To: <525283A6.1070605@dlhnet.de> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [Bug 1100843] Re: Live Migration Causes Performance Issues List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Lieven Cc: kvm@vger.kernel.org, gleb@redhat.com, quintela@redhat.com, mtosatti@redhat.com, qemu-devel , Zhang Haoyu , xiaoguangrong@linux.vnet.ibm.com, Bug 1100843 <1100843@bugs.launchpad.net>, mst@redhat.com, afaerber@suse.de Il 07/10/2013 11:49, Peter Lieven ha scritto: >> It's in general not easy to do this if you take non-x86 targets into >> account. > What about the dirty way to zero out all non zero pages at the beginning of > ram_load? I'm not sure I follow? Paolo