From owner-freebsd-hackers  Mon Jun 12  9:17:54 2000
Delivered-To: freebsd-hackers@freebsd.org
Received: from info.iet.unipi.it (info.iet.unipi.it [131.114.9.184])
	by hub.freebsd.org (Postfix) with ESMTP id 07E2A37B813
	for <hackers@FreeBSD.ORG>; Mon, 12 Jun 2000 09:17:21 -0700 (PDT)
	(envelope-from luigi@info.iet.unipi.it)
Received: (from luigi@localhost)
	by info.iet.unipi.it (8.9.3/8.9.3) id SAA01248;
	Mon, 12 Jun 2000 18:18:21 +0200 (CEST)
	(envelope-from luigi)
From: Luigi Rizzo <luigi@info.iet.unipi.it>
Message-Id: <200006121618.SAA01248@info.iet.unipi.it>
Subject: Re: Fastforwarding
In-Reply-To: <200006121547.IAA34404@apollo.backplane.com> from Matthew Dillon
 at "Jun 12, 2000 08:47:34 am"
To: Matthew Dillon <dillon@apollo.backplane.com>
Date: Mon, 12 Jun 2000 18:18:21 +0200 (CEST)
Cc: lists@security.za.net, Julian Elischer <julian@elischer.org>,
	hackers@FreeBSD.ORG
X-Mailer: ELM [version 2.4ME+ PL61 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-hackers@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

>     It kinda sounds to me like the improved speed you are getting is
>     from reduced latency rather then from higher available bandwidth.

right, i got the same feeling. only 550KB on a 10MBit ethernet is
kind of slow anyways.

	cheers
	luigi

>     You may be able to get the same result by increasing the TCP window
>     size on source and destination.  The default is only 16K (on FreeBSD
>     boxes), 8K in Win95/98, and 16K on Win2K.  If I remember right.
> 
>     Also, if either if your ethernets are on HUBs changing those out for
>     switches should result in a major improvement in performance.
> 
> 						-Matt
> 
> 



To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message