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- Path: acsu.buffalo.edu!millevil
- From: millevil@acsu.buffalo.edu (Andrew Milleville)
- Newsgroups: comp.dcom.modems
- Subject: Re: To V42Bis or not to V42Bis??
- Date: 2 Feb 1996 18:07:10 GMT
- Organization: University at Buffalo
- Message-ID: <4etjse$a0g@azure.acsu.buffalo.edu>
- References: <4ej6rh$oa2@canopus.cc.umanitoba.ca> <4eruq2$e2@hg.oro.net>
- NNTP-Posting-Host: destiny.eng.buffalo.edu
- X-Newsreader: TIN [version 1.2 PL2]
-
-
- Ed Starry (estarry@oro.net) wrote:
- : simhon@mbnet.mb.ca (Simon Hon) wrote about {To V42Bis or not to V42Bis??} in
- : 'comp.dcom.modems'...
-
- : ~Should I have V42bis on or off?
-
- : On!
- : ==================================
- : ~ I find that at 28.8 connections I get faster CPS rates with it off.
- : ~ Does this make any sense?
-
- : Yes. With compression 'Off' the data stream is slow enough to cross the
- : serial port without errors. With compression 'On' the extra amount of data
- : that's decompressed within your modem is too much for the serial port to
- : handle, there are errors and retries are necessary. Retries slow down CPS
- : rates.
-
- I think what you're trying to say is, with compression on, and while
- you're transferring pre-compressed files, it will do you no
- good. Compressed files are notrious for not compressing very well. In
- fact, the extra overhead involved in compressing files can slow down
- your throughput.
-
- It has nothing to do with serial port speed.
-
- --
- Andy Milleville
- millevil@eng.buffalo.edu
-
- ..s is a Moebius tagline....This is a Moebius tagli...
-