From owner-freebsd-stable@FreeBSD.ORG Fri May 25 13:03:49 2007 Return-Path: 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 B0D9116A46C for ; Fri, 25 May 2007 13:03:49 +0000 (UTC) (envelope-from kometen@gmail.com) Received: from nz-out-0506.google.com (nz-out-0506.google.com [64.233.162.232]) by mx1.freebsd.org (Postfix) with ESMTP id 6FDB513C483 for ; Fri, 25 May 2007 13:03:49 +0000 (UTC) (envelope-from kometen@gmail.com) Received: by nz-out-0506.google.com with SMTP id m22so759360nzf for ; Fri, 25 May 2007 06:03:49 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=rZFBPFKRPku91PhdmyF858HV2PsBvTmMz9PTdrdZPh4AQzpvLPJJAeWfeYV5pB8iUbz5oLO8bnmTbgLPyduza62n1B3yOnrc2pix1lSztwXoEsUxevXdfQRDmwf9RENBpUaoIiek0vRiynUHwBF4ikRmXFUzuuN1cGr8S2Z9z4A= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=fQQH8c7LCuuIIAkHRiFnHlZDkw5fqMhaQofWrrot5fsNc/SDDY+drXCoR9pb+hZlcnc7FYDLE9IYtHBDKQdlAGStpiOdQFUkMp5KfAfqZxOG7/B2255YEJDjLp3W81kIfcSUr1ucVjajhrPT5UXSMs3t/5bfTZKf8viqUcFQQOQ= Received: by 10.114.58.1 with SMTP id g1mr1465470waa.1180096687889; Fri, 25 May 2007 05:38:07 -0700 (PDT) Received: by 10.114.194.12 with HTTP; Fri, 25 May 2007 05:38:07 -0700 (PDT) Message-ID: Date: Fri, 25 May 2007 14:38:07 +0200 From: "Claus Guttesen" To: Stephen.Clark@seclark.us In-Reply-To: <4656D0FB.5070200@seclark.us> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 May 2007 13:03:49 -0000 > 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. > > Are there any sysctl tunables that may affect performance going over the > internet > with a slower link, dropped packets, etc that could cause this? Have you tried options DEVICE_POLLING in the kernel? If you want to try yuo can find a section in the file NOTES located the same place as your kernel. Is the kernel cusomized? Have you enabled -O2 as optimization? Do you consider release 6.2 rather than 6.1? -- regards Claus When lenity and cruelty play for a kingdom, the gentlest gamester is the soonest winner. Shakespeare