From owner-freebsd-hackers Tue Dec 4 3:49: 3 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from smtp-out.fr.alcove.com (ns1.alcove-solutions.com [212.155.209.139]) by hub.freebsd.org (Postfix) with ESMTP id 08D4437B417 for ; Tue, 4 Dec 2001 03:48:58 -0800 (PST) Received: from cedar.alcove-fr ([10.16.10.12]) by smtp-out.fr.alcove.com with esmtp (Exim 3.12 #1 (Debian)) id 16BE45-0006l2-00; Tue, 04 Dec 2001 12:48:45 +0100 Received: from nsouch by cedar.alcove-fr with local (Exim 3.12 #1 (Debian)) id 16BE45-0001i5-00; Tue, 04 Dec 2001 12:48:45 +0100 Date: Tue, 4 Dec 2001 12:48:45 +0100 From: Nicolas Souchu To: Leo Bicknell Cc: freebsd-hackers@freebsd.org Subject: Re: TCP Performance Graphs Message-ID: <20011204124845.E6345@cedar.alcove-fr> References: <20011130125839.A88302@ussenterprise.ufp.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20011130125839.A88302@ussenterprise.ufp.org> User-Agent: Mutt/1.3.20i Organization: =?iso-8859-1?Q?Alc=F4ve?= =?iso-8859-1?Q?=2C?= http://www.alcove.com Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, Nov 30, 2001 at 12:58:39PM -0500, Leo Bicknell wrote: > > Since the topic has come up again, I'll provide some graphs, and > go back to my suggestion to see if it gets some traction this time > around. > > http://www.ufp.org/~bicknell/fbsdtcp.png > > This graph shows the theoretical maximum performance of FreeBSD's > TCP stack (assuming a network with ample free bandwidth, no router > buffering, no dropped packets, etc). The red curve is with the > existing (16k) window. I've used a scale of 0 to 100ms RTT, as I > think that's the range you should find in the contentional US in > the real world. Obviously higher values would be needed to make > transoceanic hops, satellite hops, or other cases work. Question, what is RTT? The subject seems interesting but without the background... :) -- Alcôve Technical Manager - Nicolas.Souchu@fr.alcove.com - http://www.alcove.com FreeBSD Developer - nsouch@freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message