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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: <1991Feb20.221117.13560@qualcomm.com>
Date: 20 Feb 91 22:11:17 GMT
References: <1991Feb11.133727.1160@minyos.xx.rmit.oz.au> <1991Feb18.203344.1433@qualcomm.com> <1991Feb20.040652.26925@cs.cmu.edu>
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In article <1991Feb20.040652.26925@cs.cmu.edu> ralf+@cs.cmu.edu (Ralf Brown) writes:
>In article <1991Feb18.203344.1433@qualcomm.com> rdippold@maui.qualcomm.com (Ron Dippold) writes:
>}In article <1991Feb11.133727.1160@minyos.xx.rmit.oz.au> s902114@minyos.xx.rmit.oz.au (Zen) writes:
>}
>}   HyperP -   300 cps   (ZIPped file)
>}   Puma -     236 cps   (ZIPped file)
>}   Zmodem (MT) - 234 cps
>}   ZMODEM -   230 cps
>}
>}fastest protocol, hands down, is HyperP, it's packing is incredible, even
>}with an alread ZIPped file.  Unfortunately, it has a nasty tendency to
>
>Is that speed figure by the wall clock or using the built-in speed display?
>The Zmodem in Telix is notorious for over-inflating throughput, particularly
>on short files.  Also, that ZIP file you used must have had huge numbers of
>tiny files, resulting in much of the file being uncompressed headers, because
>not even ARJ manages to compress the typical ZIP file by more than 2-3%.
>

No, believe it or not, that ZIP file consisted of only 10 files and was about
200K long.  I timed it by the wall clock and by its internal display.  It did
slightly inflate the cps (it claimed 310 cps).  But with every ZIPped file I
have sent with HyperP, I get a 280 to 310 cps throughput!  That is what
impressed me, as I am also a big ARJ fan (Jung has V1.00 out, BTW).  I did
not believe it at first, because I knew of no disk-based utility that could
compress a ZIP file that much!   I would really like to know what compression
scheme these guys are using...  This protocol would spread like wildfire if
it was more reliable.