From owner-freebsd-stable Fri Dec 14 10:17:18 2001 Delivered-To: freebsd-stable@freebsd.org Received: from niwun.pair.com (niwun.pair.com [209.68.2.70]) by hub.freebsd.org (Postfix) with SMTP id 1753237B405 for ; Fri, 14 Dec 2001 10:17:14 -0800 (PST) Received: (qmail 43810 invoked by uid 3193); 14 Dec 2001 18:17:13 -0000 Received: from localhost (sendmail-bs@127.0.0.1) by localhost with SMTP; 14 Dec 2001 18:17:13 -0000 Date: Fri, 14 Dec 2001 13:17:13 -0500 (EST) From: Mike Silbersack X-Sender: To: Thomas Zenker Cc: , Subject: Re: USB ethernet problem In-Reply-To: <20011214143752.A90727@mezcal.tue.le> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, 14 Dec 2001, Thomas Zenker wrote: > Ok, I tried this. > > After doing some test, I decided, this can not be done with a quick > test, (because of contradictory results) so did a serie of tests. > It depends also on the transfer size (per connection). This is > obviously caused by the slowstart alghorithm. Wow! Your benchmarks contain quite a bit of useful data, and confirmed my suspicion that we should change the local slowstart flightsize to something a bit more reasonable. Also, incidently, you seem to have shown what's suggested in one of the newer rfcs - a slowstart flightsize of 1 is too small for optimal performance (they suggest something more like 4.) I think I'll go ahead and drop the local slowstart flightsize to 4 - we'll have to do some investigation later to see if raising the remote slowstart flightsize from 1 to 4 is a good idea. Once again, thanks for the high quality testing! Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message