Date: Fri, 2 Oct 1998 08:11:40 -0600 From: Nate Williams <nate@mt.sri.com> To: Zach Heilig <zach@gaffaneys.com> Cc: Kris Kennaway <kkennawa@physics.adelaide.edu.au>, Nate Williams <nate@mt.sri.com>, current@FreeBSD.ORG Subject: Re: fetch -p Message-ID: <199810021411.IAA15231@mt.sri.com> In-Reply-To: <19981001225125.B29551@znh.org> References: <199810011721.LAA10552@mt.sri.com> <Pine.OSF.4.03.9810021256330.20490-100000@mercury.physics.adelaide.edu.au> <19981001225125.B29551@znh.org>
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> > 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). > > I heard a rumor that the modem <-> phone <-> modem was a syncronous > connection. Whomever told you this rumor was confused. > In this case, there would be only 8 bits, no start or stop bits. See above. > a 14.4K connection would then have raw data rate of 1.8K/sec. See my previous email for the correct calculation. Ignore Kris's. :) Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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