From owner-freebsd-questions@FreeBSD.ORG Mon Jun 7 17:25:43 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4B45016A4CE for ; Mon, 7 Jun 2004 17:25:43 +0000 (GMT) Received: from out005.verizon.net (out005pub.verizon.net [206.46.170.143]) by mx1.FreeBSD.org (Postfix) with ESMTP id DA5D243D39 for ; Mon, 7 Jun 2004 17:25:42 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from [192.168.1.3] ([68.161.84.3]) by out005.verizon.net (InterMail vM.5.01.06.06 201-253-122-130-106-20030910) with ESMTP id <20040607154038.TOFF3910.out005.verizon.net@[192.168.1.3]>; Mon, 7 Jun 2004 10:40:38 -0500 Message-ID: <40C48C76.2070806@mac.com> Date: Mon, 07 Jun 2004 11:40:38 -0400 From: Chuck Swiger Organization: The Courts of Chaos User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040514 X-Accept-Language: en-us, en MIME-Version: 1.0 To: LukeD@pobox.com References: <40C3F640.2050101@mac.com> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Authentication-Info: Submitted using SMTP AUTH at out005.verizon.net from [68.161.84.3] at Mon, 7 Jun 2004 10:40:38 -0500 cc: freebsd-questions@freebsd.org Subject: Re: Please help me understand pciutils output X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Jun 2004 17:25:43 -0000 Luke wrote: [ ... ] >> More details about the USB performance in terms of numbers you are >> seeing from some benchmark would be very useful. > > I agree. How can I benchmark my just my USB controller? Using a mass storage device like an external hard drive is probably the best bet. In the message you replied to, I made some suggestions with regard to using iozone, or dd, etc. > Right now all I can say is that I've got a Netgear FA120 network > interface plugged into a USB port and I can't squeeze more than 4Mb/s > out of it. It's USB 2.0 compliant and should get close to 100Mb/s. I > get faster results out of my old 10Mb ISA card. That almost sounds like the NIC is running at USB 1.1 speeds, yes. Note that you won't generally see more than about 90% utilization for network devices due to protocol overhead and latency, but you ought to be getting something closer to 50-80 Mbs... [ ...comments about NEC chip snipped... ] -- -Chuck