From owner-freebsd-net@FreeBSD.ORG Wed Dec 15 19:31:35 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2D85216A4CE for ; Wed, 15 Dec 2004 19:31:35 +0000 (GMT) Received: from dauntless.milewski.org (dauntless.milewski.org [64.142.38.232]) by mx1.FreeBSD.org (Postfix) with ESMTP id 006D443D54 for ; Wed, 15 Dec 2004 19:31:33 +0000 (GMT) (envelope-from n6mod@milewski.org) Received: by dauntless.milewski.org (Postfix, from userid 8) id 539DB5ECAD; Wed, 15 Dec 2004 11:31:05 -0800 (PST) X-Scanned-By: AMaViS at dauntless.milewski.org. Received: from [192.168.110.112] (unknown [63.251.235.202]) by dauntless.milewski.org (Postfix) with ESMTP id D66795ECAD for ; Wed, 15 Dec 2004 11:31:02 -0800 (PST) Message-ID: <41C090F4.1070302@milewski.org> Date: Wed, 15 Dec 2004 11:31:00 -0800 From: Aleksandr Milewski User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-net@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: bge (BCM5751) maxes out at 620Mb/s TX? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 Dec 2004 19:31:35 -0000 Having pulled in some updates from HEAD to get the BCM5751 working, I am now stuck at a maximum transmit rate of about 620Mb/s. Receive works fine, I can receive at about 950Mb/s, but transmit seems limited. Same hardware (same box) under Linux does 950Mb/s each way, no problem. This is with iperf, or a simple UDP blaster tool. Also, running iperf across the box with or without dummynet suffers the same limitation. What am I doing wrong? (If the first thing on that list is "posting to the wrong list", please steer me in the right direction.) Thanks, Zandr