From owner-freebsd-stable@FreeBSD.ORG  Sat May 26 03:07:32 2007
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
X-Original-To: freebsd-stable@freebsd.org
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id D944F16A475
	for <freebsd-stable@freebsd.org>; Sat, 26 May 2007 03:07:32 +0000 (UTC)
	(envelope-from gpalmer@freebsd.org)
Received: from noop.in-addr.com (noop.in-addr.com [208.58.23.51])
	by mx1.freebsd.org (Postfix) with ESMTP id AF08B13C48A
	for <freebsd-stable@freebsd.org>; Sat, 26 May 2007 03:07:32 +0000 (UTC)
	(envelope-from gpalmer@freebsd.org)
Received: from gjp by noop.in-addr.com with local (Exim 4.54 (FreeBSD))
	id 1Hrmcr-0005O9-1y; Fri, 25 May 2007 23:07:29 -0400
Date: Fri, 25 May 2007 23:07:28 -0400
From: Gary Palmer <gpalmer@freebsd.org>
To: Stephen Clark <Stephen.Clark@seclark.us>
Message-ID: <20070526030728.GH28958@in-addr.com>
Mail-Followup-To: Stephen Clark <Stephen.Clark@seclark.us>,
	freebsd-stable@freebsd.org
References: <4656D0FB.5070200@seclark.us>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <4656D0FB.5070200@seclark.us>
Cc: freebsd-stable@freebsd.org
Subject: Re: network performance 6.1 stable vs 4.9
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 26 May 2007 03:07:32 -0000

On Fri, May 25, 2007 at 08:05:15AM -0400, Stephen Clark wrote:
> Hello List,
> 
> We have a network appliance that is currently based on 4.9. We are in 
> the process of releasing
> a new version based on 6.1 stable.
> 
> In our testing using nttcp thru the appliance we see insignifant 
> difference in thruput between the 2
> versions in a controlled environment - aproximately 94mbs on a 100mb lan.
> 
> We have a person that is testing the both system inhouse surfing out 
> over the internet on our T1
> link and he complains that he is consistently seeing the 6.1 version 
> being much slower than the
> 4.9 version (on the same hardware).
> He has been comparing the 6.1 system to 4.9 system for a couple of weeks
> and continues to insist the 6.1 version is much slower.
> 
> Are there any sysctl tunables that may affect performance going over the 
> internet
> with a slower link, dropped packets, etc that could cause this?
> 
> Any ideas would be appreciated.
> 
> Steve

I do not believe that I have seen any description of the
hardware involved.  That could play a factor.