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From: rdippold@maui.qualcomm.com (Ron Dippold)
Newsgroups: comp.os.msdos.misc
Subject: Re: relative speeds of file transfer protocols wanted
Message-ID: <1991Feb18.203344.1433@qualcomm.com>
Date: 18 Feb 91 20:33:44 GMT
References: <1991Feb11.133727.1160@minyos.xx.rmit.oz.au>
Sender: news@qualcomm.com
Distribution: comp
Organization: Qualcomm, Inc., San Diego, CA
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In article <1991Feb11.133727.1160@minyos.xx.rmit.oz.au> s902114@minyos.xx.rmit.oz.au (Zen) writes:
>Has anyone out in netland compiled a list of File transfer protocols and
>there respective speeds? I don not have the facilities to do my own tests.
>
>If anyone out there actually has FIGURES specific for different systems,
>
>i am using a 2400 baud modem with NO error correction.

There are over 50 protocols, I don't think there are figures on ALL of them.
However, if you want figures on the most common ones...

   HyperP -   300 cps   (ZIPped file)
   Puma -     236 cps   (ZIPped file)
   Zmodem (MT) - 234 cps
   ZMODEM -   230 cps
   YMODEM -   221 cps
   XMODEM -   208 cps
   KERMIT -   140 cps
   SEALINK -  218 cps

I should note that Puma will perform much faster if you are sending an
uncompressed file, as it has a rudimentary packer, as does JMODEM.  The
fastest protocol, hands down, is HyperP, it's packing is incredible, even
with an alread ZIPped file.  Unfortunately, it has a nasty tendency to
freeze if the RX and TX don't synchronize exactly right, so you won't see it
on many boards.

Also note that KERMITs are highly variable and depend on your version and the
version and mainframe that you are sending to.

All rates are for 2400 baud, given in cps (characters per second).