From owner-freebsd-arm@FreeBSD.ORG Fri Mar 13 13:17:30 2015 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id E9A69F9A for ; Fri, 13 Mar 2015 13:17:30 +0000 (UTC) Received: from raven.bwct.de (raven.bwct.de [85.159.14.73]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "raven.bwct.de", Issuer "BWCT" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 76980776 for ; Fri, 13 Mar 2015 13:17:29 +0000 (UTC) Received: from mail.cicely.de ([10.1.1.37]) by raven.bwct.de (8.13.4/8.13.4) with ESMTP id t2DDH6cQ018594 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 13 Mar 2015 14:17:06 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (cicely7.cicely.de [10.1.1.9]) by mail.cicely.de (8.14.5/8.14.4) with ESMTP id t2DDH0an093320 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 13 Mar 2015 14:17:00 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: from cicely7.cicely.de (localhost [127.0.0.1]) by cicely7.cicely.de (8.14.2/8.14.2) with ESMTP id t2DDH0HB034775; Fri, 13 Mar 2015 14:17:00 +0100 (CET) (envelope-from ticso@cicely7.cicely.de) Received: (from ticso@localhost) by cicely7.cicely.de (8.14.2/8.14.2/Submit) id t2DDH06F034774; Fri, 13 Mar 2015 14:17:00 +0100 (CET) (envelope-from ticso) Date: Fri, 13 Mar 2015 14:17:00 +0100 From: Bernd Walter To: Paul Mather Subject: Re: BeagleBone slow inbound net I/O Message-ID: <20150313131700.GA34648@cicely7.cicely.de> Reply-To: ticso@cicely.de References: <20150311165115.32327c5a@ivory.wynn.com> <20150312133433.GB28385@cicely7.cicely.de> <20150312232641.4365263d@ivory.wynn.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Operating-System: FreeBSD cicely7.cicely.de 7.0-STABLE i386 User-Agent: Mutt/1.5.11 X-Spam-Status: No, score=-0.2 required=5.0 tests=ALL_TRUSTED=-1, BAYES_00=-1.9, DNS_FROM_AHBL_RHSBL=2.699, T_RP_MATCHES_RCVD=-0.01 autolearn=no version=3.3.0 X-Spam-Checker-Version: SpamAssassin 3.3.0 (2010-01-18) on spamd.cicely.de Cc: "freebsd-arm@freebsd.org" , Bernd Walter X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Mar 2015 13:17:31 -0000 On Fri, Mar 13, 2015 at 08:34:59AM -0400, Paul Mather wrote: > On Mar 12, 2015, at 11:26 PM, Brett Wynkoop wrote: > > > Greeting- > > > > It is confirmed, the net I/O is much slower than reading from the SD > > card. Here is another run of tar - pipe - tar, but this time the > > source is the sd card and the destination is still the USB zfs. > > > The Beaglebone uses a USB NIC so any I/O to/from SD card will be competing for resources and potentially slowing things down. No it does not. AFAIK the Sitara SoC even has a second NIC and can do Gbit, which is not supported byt the board. I think some or all of the beagleboards use USB for ethernet. -- B.Walter http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.