From owner-freebsd-current Thu Oct 1 20:31:46 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id UAA19538 for freebsd-current-outgoing; Thu, 1 Oct 1998 20:31:46 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from adelphi.physics.adelaide.edu.au (adelphi.physics.adelaide.edu.au [129.127.36.247]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id UAA19533 for ; Thu, 1 Oct 1998 20:31:43 -0700 (PDT) (envelope-from kkennawa@physics.adelaide.edu.au) Received: from mercury (mercury [129.127.36.44]) by adelphi.physics.adelaide.edu.au (8.8.8/8.8.8/UofA-1.5) with SMTP id NAA18332; Fri, 2 Oct 1998 13:01:25 +0930 (CST) Received: from localhost by mercury; (5.65v3.2/1.1.8.2/27Nov97-0404PM) id AA23142; Fri, 2 Oct 1998 13:01:24 +0930 Date: Fri, 2 Oct 1998 13:01:23 +0930 (CST) From: Kris Kennaway To: Nate Williams Cc: current@FreeBSD.ORG Subject: Re: fetch -p In-Reply-To: <199810011721.LAA10552@mt.sri.com> Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 1 Oct 1998, Nate Williams wrote: > > Incidentally (and unrelatedly), the most recent download (which eventually > > became truncated) fairly stormed down my modem - I averaged 1.63k/s on my > > 14.4k modem for the transfer of MesaLib-3.0.tar.gz, which gzip -9 was only > > able to shrink by .9%. > > Do you have compression turned on your modem? If so, pre-compressed > files wreak havoc on modem compression and in many cases *slow* things > down. > > In other words, 1.6K/sec is pretty good on pre-compressed data for a > 14.4K modem. (But, I maybe mis-understanding in that you think this is > actually better than expected, rather than worse than expected.) Yes, this was actually my point; on a 14.4k modem without compression I should be getting about 1.4k/s throughput. The figure I got was 16% higher than this just on the downloaded data transfer speed, and PPP adds extra overhead for the protocol (compressing the file by a further 16% is no mean feat :-). Getting transfer rates of this speed and higher is commonplace for text transfers which can be easily compressed, but this is the first time I'd noticed an already-compressed data stream coming in that fast (which is what makes me suspicious). Kris To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message