Date: Fri, 2 Oct 1998 13:01:23 +0930 (CST) From: Kris Kennaway <kkennawa@physics.adelaide.edu.au> To: Nate Williams <nate@mt.sri.com> Cc: current@FreeBSD.ORG Subject: Re: fetch -p Message-ID: <Pine.OSF.4.03.9810021256330.20490-100000@mercury.physics.adelaide.edu.au> In-Reply-To: <199810011721.LAA10552@mt.sri.com>
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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
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