From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Yang Subject: Re: [Qemu-devel] [RFC Design Doc]Speed up live migration by skipping free pages Date: Wed, 23 Mar 2016 21:41:26 +0000 Message-ID: <20160323214126.GA30300@vultr.guest> References: <1458632629-4649-1-git-send-email-liang.z.li@intel.com> <20160323013715.GB13750@linux-gk3p> <56F2CA16.5030900@redhat.com> Reply-To: Wei Yang Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "Li, Liang Z" , Wei Yang , "linux-kernel@vger.kenel.org" , "ehabkost@redhat.com" , "kvm@vger.kernel.org" , "mst@redhat.com" , "simhan@hpe.com" , "quintela@redhat.com" , "qemu-devel@nongnu.org" , "dgilbert@redhat.com" , "jitendra.kolhe@hpe.com" , "rkagan@virtuozzo.com" , "amit.shah@redhat.com" , "pbonzini@redhat.com" , "rth@twiddle.net" , "mohan_parthasarathy@hpe.com" To: Eric Blake Return-path: Received: from mail-pf0-f195.google.com ([209.85.192.195]:34085 "EHLO mail-pf0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751083AbcCWVla (ORCPT ); Wed, 23 Mar 2016 17:41:30 -0400 Received: by mail-pf0-f195.google.com with SMTP id n5so5321105pfn.1 for ; Wed, 23 Mar 2016 14:41:29 -0700 (PDT) Content-Disposition: inline In-Reply-To: <56F2CA16.5030900@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Wed, Mar 23, 2016 at 10:53:42AM -0600, Eric Blake wrote: >On 03/23/2016 01:18 AM, Li, Liang Z wrote: > >>>> >>>> >From guest's point of view, there are some pages currently not used by >>> >>> I see in your original RFC patch and your RFC doc, this line starts with a >>> character '>'. Not sure this one has a special purpose? >>> >> >> No special purpose. Maybe it's caused by the email client. I didn't find the >> character in the original doc. >> > >Yes, it's an artifact used by many mailers so that mailboxes don't get >confused by a bare "From" at the start of a line but in the middle >rather than the start of a message. > >It's possible to avoid the artifact by using quoted-printable and >escaping the 'F', and I'm honestly a bit surprised that git doesn't do >it automatically. > Oh, first time to notice this, interesting~ >-- >Eric Blake eblake redhat com +1-919-301-3266 >Libvirt virtualization library http://libvirt.org > -- Wei Yang Help you, Help me From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37557) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aiqX0-0005uK-QZ for qemu-devel@nongnu.org; Wed, 23 Mar 2016 17:41:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aiqWw-00061z-Pr for qemu-devel@nongnu.org; Wed, 23 Mar 2016 17:41:34 -0400 Received: from mail-pf0-x242.google.com ([2607:f8b0:400e:c00::242]:34968) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aiqWw-00061o-If for qemu-devel@nongnu.org; Wed, 23 Mar 2016 17:41:30 -0400 Received: by mail-pf0-x242.google.com with SMTP id u190so5340904pfb.2 for ; Wed, 23 Mar 2016 14:41:30 -0700 (PDT) Date: Wed, 23 Mar 2016 21:41:26 +0000 From: Wei Yang Message-ID: <20160323214126.GA30300@vultr.guest> References: <1458632629-4649-1-git-send-email-liang.z.li@intel.com> <20160323013715.GB13750@linux-gk3p> <56F2CA16.5030900@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56F2CA16.5030900@redhat.com> Subject: Re: [Qemu-devel] [RFC Design Doc]Speed up live migration by skipping free pages Reply-To: Wei Yang List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Eric Blake Cc: "mohan_parthasarathy@hpe.com" , "linux-kernel@vger.kenel.org" , "ehabkost@redhat.com" , "kvm@vger.kernel.org" , "mst@redhat.com" , "simhan@hpe.com" , "Li, Liang Z" , "qemu-devel@nongnu.org" , "dgilbert@redhat.com" , "jitendra.kolhe@hpe.com" , "quintela@redhat.com" , "rkagan@virtuozzo.com" , "amit.shah@redhat.com" , "pbonzini@redhat.com" , Wei Yang , "rth@twiddle.net" On Wed, Mar 23, 2016 at 10:53:42AM -0600, Eric Blake wrote: >On 03/23/2016 01:18 AM, Li, Liang Z wrote: > >>>> >>>> >From guest's point of view, there are some pages currently not used by >>> >>> I see in your original RFC patch and your RFC doc, this line starts with a >>> character '>'. Not sure this one has a special purpose? >>> >> >> No special purpose. Maybe it's caused by the email client. I didn't find the >> character in the original doc. >> > >Yes, it's an artifact used by many mailers so that mailboxes don't get >confused by a bare "From" at the start of a line but in the middle >rather than the start of a message. > >It's possible to avoid the artifact by using quoted-printable and >escaping the 'F', and I'm honestly a bit surprised that git doesn't do >it automatically. > Oh, first time to notice this, interesting~ >-- >Eric Blake eblake redhat com +1-919-301-3266 >Libvirt virtualization library http://libvirt.org > -- Wei Yang Help you, Help me