Date: Tue, 28 Jan 1997 18:53:34 -0800 From: David Greenman <dg@root.com> To: Terry Lambert <terry@lambert.org> Cc: jpt@msc.edu (Joseph Thomas), danny@panda.hilink.com.au, shovey@buffnet.net, robert@nanguo.chalmers.com.au, freebsd-isp@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: RFC 1323 default settings (was Re: progress report on connection problems) Message-ID: <199701290253.SAA18540@root.com> In-Reply-To: Your message of "Tue, 28 Jan 1997 17:16:05 MST." <199701290016.RAA09514@phaeton.artisoft.com>
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>> As a data point - running a local-area ATM with "out of the box" >> parameters (for 2.2 this looks to be 16K windows with no-scaling), I get >> 60 KB/s out of the box vs 3.0-3.5 MB/s into the box, [notice the really >> bad discrepancy] via ftp. With larger windows (60KB), I can get in the >> range of 3.5-4.0 MB/s [either 'put xxx /dev/null' or 'get xxx /dev/null' >> so local disk access is somewhat unrelated. That is, the numbers don't >> vary much if I'm sending from local disk or receiving to /dev/null.] >> >> Using ttcp (tcp user application, memory to memory), I've transmitted >> close to 70 Mb/s, in the "local-area". I'm not sure that getting twice >> the throughput counts as being 'not long enough'. >> >> [I'm simply providing this as a data point for the discussion, not attempting >> or interested in arguing for or against either side.] > >Uh, isn't 70/3.5 20 times, not 2 times? He's mixing bits and bytes. Pay attention to the case of the "b". -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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