From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:43781) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TgnuX-0000ok-7h for qemu-devel@nongnu.org; Thu, 06 Dec 2012 21:43:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TgnuW-0002Er-BJ for qemu-devel@nongnu.org; Thu, 06 Dec 2012 21:43:33 -0500 Received: from mail-pa0-f45.google.com ([209.85.220.45]:40784) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TgnuW-0002El-3x for qemu-devel@nongnu.org; Thu, 06 Dec 2012 21:43:32 -0500 Received: by mail-pa0-f45.google.com with SMTP id bg2so114247pad.4 for ; Thu, 06 Dec 2012 18:43:30 -0800 (PST) Message-ID: <50C157CC.1000405@gmail.com> Date: Fri, 07 Dec 2012 10:43:24 +0800 From: Liu Yuan MIME-Version: 1.0 References: <1354740430-22452-1-git-send-email-stefanha@redhat.com> In-Reply-To: <1354740430-22452-1-git-send-email-stefanha@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v5 00/11] virtio: virtio-blk data plane List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: Kevin Wolf , Anthony Liguori , "Michael S. Tsirkin" , qemu-devel@nongnu.org, Blue Swirl , khoa@us.ibm.com, Paolo Bonzini , asias@redhat.com Hi Stefan, On 12/06/2012 04:46 AM, Stefan Hajnoczi wrote: > Limitations: > * Only format=raw is supported The boost number looks promising, but support of other format(which might as well fit into this new IO path design) is in the plan? It seems that bypassing block layer would end up adding yet another 'block layer' as we add more format support. Thanks, Yuan