From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=46776 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PCwji-0003pB-AF for qemu-devel@nongnu.org; Mon, 01 Nov 2010 11:55:59 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PCwje-0003A4-IM for qemu-devel@nongnu.org; Mon, 01 Nov 2010 11:55:51 -0400 Received: from bhuna.collabora.co.uk ([93.93.128.226]:34920) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PCwje-00039x-Ct for qemu-devel@nongnu.org; Mon, 01 Nov 2010 11:55:50 -0400 Message-ID: <4CCEE1BA.5030404@collabora.co.uk> Date: Mon, 01 Nov 2010 15:50:18 +0000 From: Ian Molton MIME-Version: 1.0 Subject: Re: [Qemu-devel] Re: [PATCH] Implement a virtio GPU transport References: <4CAC9CD1.2050601@collabora.co.uk> <4CB1D79A.6070805@redhat.com> <4CBD739A.2010500@collabora.co.uk> <4CBD7560.6080207@redhat.com> <4CC8226F.5080807@collabora.co.uk> <4CC94203.1080207@redhat.com> <4CC9647A.50108@collabora.co.uk> <4CC98784.7020907@redhat.com> <4CC9D472.2080109@collabora.co.uk> <4CCE9989.2010809@redhat.com> In-Reply-To: <4CCE9989.2010809@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Avi Kivity Cc: virtualization@lists.osdl.org, linux-kernel@vger.kernel.org, QEMU Developers On 01/11/10 10:42, Avi Kivity wrote: >> No, not really. the guest may call for the scene to be rendered at >> any time and we have to wait for that to happen before we can >> return the data to it. > > Waiting for a response is fine, but can't the guest issue a second > batch while waiting for the first? No. Userspace doesnt do or expect that. Multiple applications work fine, however. -Ian