From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45366) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vzzje-00024N-5Z for qemu-devel@nongnu.org; Sun, 05 Jan 2014 21:16:17 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VzzjW-0004qQ-OD for qemu-devel@nongnu.org; Sun, 05 Jan 2014 21:16:10 -0500 Received: from mail-ee0-f47.google.com ([74.125.83.47]:50280) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VzzjW-0004qJ-Ht for qemu-devel@nongnu.org; Sun, 05 Jan 2014 21:16:02 -0500 Received: by mail-ee0-f47.google.com with SMTP id e51so6539620eek.34 for ; Sun, 05 Jan 2014 18:15:27 -0800 (PST) Date: Mon, 6 Jan 2014 10:15:19 +0800 From: Stefan Hajnoczi Message-ID: <20140106021519.GB9790@stefanha-thinkpad.redhat.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Subject: Re: [Qemu-devel] Communication between Windows 7 host and Linux guest List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gripon =?iso-8859-1?Q?S=E9bastien?= Cc: "qemu-devel@nongnu.org" On Sun, Dec 22, 2013 at 07:15:18PM +0000, Gripon Sébastien wrote: > I have the need to communicate efficiently between Windows 7 host and linux guest. I tried first to use an IP socket communication using TAP driver on Windows. Unfortunately, we reach a maximum of 4 Mbits/s where I would need faster communication (more than 10 Mb/s). I don’t know yet if the TAP driver is slow. That seems very slow, 100 Mbit/s should definitely be achievable. But I have never tried TAP on Windows. Can you share the QEMU command-line and the benchmark used to measure this result? Stefan