From owner-freebsd-arm@FreeBSD.ORG Thu May 1 23:35:32 2014 Return-Path: Delivered-To: freebsd-arm@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 85ACFA15 for ; Thu, 1 May 2014 23:35:32 +0000 (UTC) Received: from mho-01-ewr.mailhop.org (mho-03-ewr.mailhop.org [204.13.248.66]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 57E771A41 for ; Thu, 1 May 2014 23:35:31 +0000 (UTC) Received: from c-24-8-230-52.hsd1.co.comcast.net ([24.8.230.52] helo=damnhippie.dyndns.org) by mho-01-ewr.mailhop.org with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.72) (envelope-from ) id 1Wg0Vg-000Hr5-Oh; Thu, 01 May 2014 23:35:24 +0000 Received: from [172.22.42.240] (revolution.hippie.lan [172.22.42.240]) by damnhippie.dyndns.org (8.14.3/8.14.3) with ESMTP id s41NZM76019332; Thu, 1 May 2014 17:35:22 -0600 (MDT) (envelope-from ian@FreeBSD.org) X-Mail-Handler: Dyn Standard SMTP by Dyn X-Originating-IP: 24.8.230.52 X-Report-Abuse-To: abuse@dyndns.com (see http://www.dyndns.com/services/sendlabs/outbound_abuse.html for abuse reporting information) X-MHO-User: U2FsdGVkX18LdnMsmSHTVrV1NjvTmGaK Subject: Re: Beaglebone black network performance From: Ian Lepore To: Winston Smith In-Reply-To: References: Content-Type: text/plain; charset="ISO-8859-1" Date: Thu, 01 May 2014 17:35:22 -0600 Message-ID: <1398987322.22079.138.camel@revolution.hippie.lan> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by damnhippie.dyndns.org id s41NZM76019332 Cc: freebsd-arm X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 May 2014 23:35:32 -0000 On Thu, 2014-05-01 at 13:02 -0400, Winston Smith wrote: > On Thu, May 1, 2014 at 12:47 PM, =D6zkan KIRIK = wrote: > > Rasberry PI's network performance is about 6-7Mbit/s, and ping latenc= ies > > are about 10-20 milliseconds. I think it's too high. I used iperf for > > bandwidth testing. >=20 > The RPi's 10/100 ethernet controller is connected to the BCM2835 SoC > via it's USB controller, so the USB controller has to share it's > bandwidth between the peripherals. >=20 > The BBB also has a 10/100 ethernet, but it's directly supported by the > SoC, so the performance *should* be a little better, particularly when > there's other USB traffic. It's interesting that reports of the rpi network performance are all over the map. The performance is pretty bad for me, iperf says 17.5mbits/sec and pings are in the 7-10ms range (!). =20 I swap the network cable over to an imx53 board (a 10/100 ethernet in a 1ghz soc) and it gets 77 mbits/sec and 200us pings, for comparison. -- Ian