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vanj.88nov23.txt
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1995-11-10
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From uunet!HELIOS.EE.LBL.GOV!van Wed Nov 23 06:21:18 1988
Path: hsi!uunet!eplrx7!udel!princeton!njin!rutgers!mailrus!ames!pasteur!ucbvax!HELIOS.EE.LBL.GOV!van
>From: van@HELIOS.EE.LBL.GOV (Van Jacobson)
Newsgroups: comp.protocols.tcp-ip
Subject: re: Performance
Message-ID: <8811231121.AA19744@helios.ee.lbl.gov>
Date: 23 Nov 88 11:21:18 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 39
> Recently, I improved "ftp" in one of our products which is 4.2BSD based.
> I had 351465 bytes received in 1 second ( 3.4 e + 02 Kbytes/sec )
> ...
> Is there anybody has better "ftp" performance than mine ???
It would be interesting to see what performance you would get
with a good tcp. I think Dave Borman of Cray Research holds the
current ftp speed record: He routinely gets 30 Megabytes/sec
(of course, some of us think using two Cray-IIs gives him an
unfair competitive advantage). If you're using more
conventional hardware, 340 Mb/s still isn't spectacular. Here's
a typescript between two of our Sun 3/60s across an ethernet.
Both machines are running stock 4.3bsd-tahoe ftp & ftpd with
Mike Karels' and my tcp & kernel hacks:
Script started on Wed Nov 23 02:40:44 1988
[vs 1]% ftp yak
Connected to yak.ee.lbl.gov.
220 yak FTP server (Version 4.27 Sat Nov 5 02:20:42 PST 1988) ready.
Name (yak:van):
331 Password required for van.
Password:
230 User van logged in.
ftp> bin
200 Type set to I.
ftp> get /usr/lib/libcore.a /dev/null
200 PORT command okay.
150 Opening data connection for /usr/lib/libcore.a (669336 bytes).
226 Transfer complete.
669336 bytes received in 0.82 seconds (8e+02 Kbytes/s)
ftp> get /usr/lib/libcore.a /dev/null
200 PORT command okay.
150 Opening data connection for /usr/lib/libcore.a (669336 bytes).
226 Transfer complete.
669336 bytes received in 0.82 seconds (8e+02 Kbytes/s)
ftp> bye
221 Goodbye.
[vs 2]% exit
script done on Wed Nov 23 02:41:23 1988