From owner-freebsd-current@FreeBSD.ORG Mon Aug 5 22:52:12 2013 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id ED03B6B3; Mon, 5 Aug 2013 22:52:12 +0000 (UTC) (envelope-from bryanv@daemoninthecloset.org) Received: from torment.daemoninthecloset.org (torment.daemoninthecloset.org [94.242.209.234]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id AE6532C60; Mon, 5 Aug 2013 22:52:12 +0000 (UTC) Received: from sage.daemoninthecloset.org (unknown [70.114.209.60]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "sage.daemoninthecloset.org", Issuer "daemoninthecloset.org" (verified OK)) by torment.daemoninthecloset.org (Postfix) with ESMTPS id 5CA1742C082F; Tue, 6 Aug 2013 00:56:21 +0200 (CEST) X-Virus-Scanned: amavisd-new at daemoninthecloset.org X-Virus-Scanned: amavisd-new at daemoninthecloset.org Date: Mon, 5 Aug 2013 17:52:01 -0500 (CDT) From: Bryan Venteicher To: Joel Dahl Message-ID: <1174186801.993.1375743121722.JavaMail.root@daemoninthecloset.org> In-Reply-To: <20130805202039.GA18861@devbox.vnode.local> References: <1050637258.686.1375660230986.JavaMail.root@daemoninthecloset.org> <601099152.721.1375661537866.JavaMail.root@daemoninthecloset.org> <20130805202039.GA18861@devbox.vnode.local> Subject: Re: [CFT] VMware vmxnet3 ethernet driver MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.51.1.6] X-Mailer: Zimbra 8.0.2_GA_5569 (ZimbraWebClient - GC28 (Mac)/8.0.2_GA_5569) Thread-Topic: VMware vmxnet3 ethernet driver Thread-Index: XglhsYXvJ+VZ70khzgi9CYN8S8Swgg== Cc: current@freebsd.org X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Aug 2013 22:52:13 -0000 ----- Original Message ----- > I have ~100 FreeBSD 8/9 VMs in my vSphere 5.1 environment, all using the > VMware tools package from VMware. Everything has been running great for > years. > (we skipped vSphere 5.0). Why should I use this vmxnet driver instead of the > VMware tools driver or the emulated e1000? > They are out of tree and subject to rotting. I had to use the patches at [1] to even get them to compile on 9.1 and -current. I don't think VMware puts much engineering resources behind it; there was a compiler warning of a silly bug like: if (foo) ; do_something(); vmxnet3 has modern features LRO, IPv6 checksum offloading, etc that the emulated e1000 lacks. In my test setup, e1000 tops out at 30MB/sec but vmxnet3 goes to 50MB/sec. I'd like to hear other's experiences. [1] - http://ogris.de/vmware/ > -- > Joel >