From owner-freebsd-current@FreeBSD.ORG  Thu Mar 11 06:46:26 2010
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id A47791065675
	for <current@freebsd.org>; Thu, 11 Mar 2010 06:46:26 +0000 (UTC)
	(envelope-from ianf@clue.co.za)
Received: from inbound01.jnb1.gp-online.net (inbound01.jnb1.gp-online.net
	[41.161.16.135])
	by mx1.freebsd.org (Postfix) with ESMTP id 24CF48FC1A
	for <current@freebsd.org>; Thu, 11 Mar 2010 06:46:25 +0000 (UTC)
Received: from [41.154.88.19] (helo=clue.co.za)
	by inbound01.jnb1.gp-online.net with esmtpsa
	(TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.63)
	(envelope-from <ianf@clue.co.za>)
	id 1NpcA3-0005l2-6a; Thu, 11 Mar 2010 08:46:23 +0200
Received: from localhost ([127.0.0.1] helo=clue.co.za)
	by clue.co.za with esmtp (Exim 4.69 (FreeBSD))
	(envelope-from <ianf@clue.co.za>)
	id 1NpcA0-000ItK-5J; Thu, 11 Mar 2010 08:46:20 +0200
To: pyunyh@gmail.com
From: Ian FREISLICH <ianf@clue.co.za>
In-Reply-To: <20100310195206.GB10657@michelle.cdnetworks.com> 
References: <20100310195206.GB10657@michelle.cdnetworks.com>
	<20100305175639.GB14818@michelle.cdnetworks.com>
	<E1NnVaT-0003Ft-3p@clue.co.za> <E1Nnc4d-0003mB-6e@clue.co.za>
	<E1Nne0Q-0003uZ-OR@clue.co.za> <E1Noulp-0007Rc-Ro@clue.co.za>
	<20100309212139.GO1311@michelle.cdnetworks.com>
	<5D267A3F22FD854F8F48B3D2B52381933AF90EED69@IRVEXCHCCR01.corp.ad.broadcom.com>
	<20100309214012.GQ1311@michelle.cdnetworks.com>
	<E1NpHr0-000HWT-It@clue.co.za>
	<5D267A3F22FD854F8F48B3D2B52381933AF90EF16F@IRVEXCHCCR01.corp.ad.broadcom.com>
X-Attribution: BOFH
Date: Thu, 11 Mar 2010 08:46:20 +0200
Message-Id: <E1NpcA0-000ItK-5J@clue.co.za>
Cc: David Christensen <davidch@broadcom.com>, current@freebsd.org
Subject: Re: dev.bce.X.com_no_buffers increasing and packet loss 
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 11 Mar 2010 06:46:26 -0000

Pyun YongHyeon wrote:
> I successfully reproduced the issue with netperf on BCM5709. You
> can use UDP frame size 1 to trigger the issue.

Now I wish I had paid closer attention ages ago.  I actually saw
this when I benchmarked the system post purchase, but didn't
investigate further.  I tested and specified the hardware and that
system was forwarding 1MPPS.  Then the bean counters got interested
in Dell and they bought something entirely different.

Thanks very, very much for your interest.  This is one of the reasons
I love FreeBSD - invariably, the right people are available and
interested.

Ian

--
Ian Freislich