From owner-freebsd-questions@FreeBSD.ORG Fri Aug 8 02:23:48 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 6AA9269B for ; Fri, 8 Aug 2014 02:23:48 +0000 (UTC) Received: from mail-pa0-x242.google.com (mail-pa0-x242.google.com [IPv6:2607:f8b0:400e:c03::242]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 3FF362891 for ; Fri, 8 Aug 2014 02:23:48 +0000 (UTC) Received: by mail-pa0-f66.google.com with SMTP id lf10so3028815pab.5 for ; Thu, 07 Aug 2014 19:23:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:content-type:content-transfer-encoding:mime-version:subject :message-id:date:to; bh=Mum2oWJ0TNJOLjDVFag8gXOg/KtnvXyiPBsu/rzHtDo=; b=tL/IuA/beAj6pQ4w50hVcYnJb3S7jG+0dSvDidSy4ySAxE/8ElxtyeAUP37pKUuXcH t4qU5c3WXRKFvbccrOuQcxRAFJpOTGMZSaKvM8rlmMsUGfLix1QCwImq0zK/x3Atfocs 9BnOCgoltC0nzhWujlQg/utGDdaycuA62q9RUbZCtKfcD78dcPITUmzyBrYtifN27R55 hsa4WP+MD6FkoLb11cHQpbPDX7mLjfKR6/STBGeLO07t3wQY3nRLkJ6KcerxsIbthHcu sGjcznCWooHbOwCMIgNVRX9fTl83/geq/SEIzQUxrG/qhapDHP/YfSyfPHZSEhw1vR/6 CAYw== X-Received: by 10.70.35.207 with SMTP id k15mr21151397pdj.5.1407464627816; Thu, 07 Aug 2014 19:23:47 -0700 (PDT) Received: from [10.103.145.246] (pw126255222071.9.panda-world.ne.jp. [126.255.222.71]) by mx.google.com with ESMTPSA id kl1sm1218799pbd.31.2014.08.07.19.23.46 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 07 Aug 2014 19:23:47 -0700 (PDT) From: Steve N Mime-Version: 1.0 (1.0) Subject: Virtio_pci Problems Message-Id: Date: Fri, 8 Aug 2014 11:23:45 +0900 To: "freebsd-questions@freebsd.org" X-Mailer: iPhone Mail (11D257) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.18 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Aug 2014 02:23:48 -0000 Dear Experts,=20 I set up virtualized environment using Free BSD 9.2 as a guest OS on Linux H= ypervisor as a host and attempted to communicate using virtio_pci.=20 I have a couple of questions on this environment. 1) I'd like to know the degree of completion of virtio_pci driver. Are any p= roducts already offered in markets? If you know an example of some products i= n the marketplace using virtio_pci working on virtualized Free BSD with Linu= x hypervisor.=20 2) When I measured a transmission speed under the environment above, I got t= he results of 904 Mbps for TCP and 327 Mbps for UDP. I'd like to isolate the= cause of this issue. I mean this is caused either by my environment or by d= river's well-known problem. Have you ever experienced such a case that the p= erformance of UDP is much worse than that of TCP?=20 Thank you in advance for your support.=20