From owner-freebsd-net@FreeBSD.ORG  Tue Feb 22 09:41:49 2005
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
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 BDD2716A4F0
	for <freebsd-net@freebsd.org>; Tue, 22 Feb 2005 09:41:49 +0000 (GMT)
Received: from dbmail-mx2.orcon.net.nz (loadbalancer1.orcon.net.nz
	[219.88.242.3])	by mx1.FreeBSD.org (Postfix) with ESMTP id ABB2643D2D
	for <freebsd-net@freebsd.org>; Tue, 22 Feb 2005 09:41:48 +0000 (GMT)
	(envelope-from pmurray@nevada.net.nz)
Received: from [10.58.2.16] (port-222-152-49-103.fastadsl.net.nz
	[222.152.49.103])j1M9gYJ8012585
	for <freebsd-net@freebsd.org>; Tue, 22 Feb 2005 22:42:34 +1300
Message-ID: <421AFE52.3080509@nevada.net.nz>
Date: Tue, 22 Feb 2005 22:41:38 +1300
From: Philip Murray <pmurray@nevada.net.nz>
User-Agent: Mozilla Thunderbird 0.7.1 (Windows/20040626)
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: freebsd-net@freebsd.org
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
X-Virus-Scanned: ClamAV version 0.83, clamav-milter version 0.83 on
	dbmail-mx2.orcon.net.nz
X-Virus-Status: Clean
Subject: FreeBSD, Samba and OSX clients
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 22 Feb 2005 09:41:49 -0000

Hi,

I have a problem with MacOS X clients (all 10.3.8) accessing a Samba 
server on FreeBSD (RELENG_5). Transferring files will often occur very 
very slowly, usually between 170k/sec-32k/sec.

This doesn't happen with a Windows or Linux server and likewise if the 
clients are Windows or Linux. The version of Samba also seems to have no 
effect. NFS performance is fine, as is iperf doing a TCP test. The 
machines are all connected on a 100Mb/sec switched network.

I've tried toggling various net.inet.tcp sysctls to see if any make a 
difference (delayed ACKs, SACK etc), but nothing seems to have any 
effect. Any ideas on how I can further debug this? is there something 
obvious that could be wrong?

I tried doing a tcpdump, but I couldn't really make enough sense of it 
to know if there was something wrong.

Thanks in advance.

Phil Murray
pmurray@nevada.net.nz