From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:57096) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDWkl-0001mi-Uk for qemu-devel@nongnu.org; Thu, 07 Mar 2013 04:04:44 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UDWki-0001ID-FD for qemu-devel@nongnu.org; Thu, 07 Mar 2013 04:04:43 -0500 Received: from mx1.redhat.com ([209.132.183.28]:17542) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UDWki-0001I8-7k for qemu-devel@nongnu.org; Thu, 07 Mar 2013 04:04:40 -0500 Date: Thu, 7 Mar 2013 10:04:36 +0100 From: Kevin Wolf Message-ID: <20130307090436.GF2536@dhcp-200-207.str.redhat.com> References: <20130304125806.GA18476@stefanha-thinkpad.redhat.com> <24E144B8C0207547AD09C467A8259F7557B277AE@lisa.maurer-it.com> <20130304135537.GC3929@dhcp-200-207.str.redhat.com> <24E144B8C0207547AD09C467A8259F7557B278C1@lisa.maurer-it.com> <20130306124424.GE1954@stefanha-thinkpad.muc.redhat.com> <24E144B8C0207547AD09C467A8259F7557B2C525@lisa.maurer-it.com> <20130306152202.GC2285@dhcp-200-207.str.redhat.com> <24E144B8C0207547AD09C467A8259F7557B2C6B8@lisa.maurer-it.com> <20130306154817.GF2285@dhcp-200-207.str.redhat.com> <24E144B8C0207547AD09C467A8259F7557B2C8D8@lisa.maurer-it.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <24E144B8C0207547AD09C467A8259F7557B2C8D8@lisa.maurer-it.com> Subject: Re: [Qemu-devel] [PATCH v4 3/6] add backup related monitor commands List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Dietmar Maurer Cc: Stefan Hajnoczi , "qemu-devel@nongnu.org" Am 06.03.2013 um 18:39 hat Dietmar Maurer geschrieben: > > > > How about variable block sizes? I mean this is a stream format that > > > > has a header for each block anyway. Include a size there and be done. > > > > > > You can make that as complex as you want. I simply do not need that. > > > > Then you also don't need the performance that you lose by using NBD. > > Why exactly? Because your format kills more performance than any NBD connection could. Kevin