From owner-freebsd-emulation@freebsd.org Wed Feb 21 18:39:56 2018 Return-Path: Delivered-To: freebsd-emulation@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 770F4F1D870 for ; Wed, 21 Feb 2018 18:39:56 +0000 (UTC) (envelope-from mike@sentex.net) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 175526B25E for ; Wed, 21 Feb 2018 18:39:56 +0000 (UTC) (envelope-from mike@sentex.net) Received: by mailman.ysv.freebsd.org (Postfix) id CA2EFF1D86F; Wed, 21 Feb 2018 18:39:55 +0000 (UTC) Delivered-To: emulation@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B77BDF1D86E for ; Wed, 21 Feb 2018 18:39:55 +0000 (UTC) (envelope-from mike@sentex.net) Received: from smarthost2.sentex.ca (smarthost2.sentex.ca [IPv6:2607:f3e0:80:80::2]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "smarthost.sentex.ca", Issuer "smarthost.sentex.ca" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 61A726B25D for ; Wed, 21 Feb 2018 18:39:55 +0000 (UTC) (envelope-from mike@sentex.net) Received: from lava.sentex.ca (lava.sentex.ca [IPv6:2607:f3e0:0:5::11]) by smarthost2.sentex.ca (8.15.2/8.15.2) with ESMTPS id w1LIdsBr032088 (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Wed, 21 Feb 2018 13:39:54 -0500 (EST) (envelope-from mike@sentex.net) Received: from [192.168.43.26] (saphire3.sentex.ca [192.168.43.26]) by lava.sentex.ca (8.15.2/8.15.2) with ESMTP id w1LIdqMK093071 for ; Wed, 21 Feb 2018 13:39:52 -0500 (EST) (envelope-from mike@sentex.net) To: "freebsd-emulation@freebsd.org" From: Mike Tancsa Subject: vtnet vs em in virtualbox Organization: Sentex Communications Message-ID: Date: Wed, 21 Feb 2018 13:39:52 -0500 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.78 X-BeenThere: freebsd-emulation@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Development of Emulators of other operating systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Feb 2018 18:39:56 -0000 Hi all, I noticed recently in RELENG_11 some not so good performance on VMs using the vtnet driver. For example on a bridged interface to an epair nic on the hypervisor, em gets 1.2Gb vs not much more than 250Mb on the vtnet driver. Any ideas what might be going on ? ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 x203 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada