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echo: os2inet
to: GARY KOPYCINSKI
from: CHRIS PITZEL
date: 1997-06-28 01:34:00
subject: Locking the Comm Port

 GK> Is there a noticable difference in locking the comm 
 GK> port at 115200 as opposed
 GK> to 57600 or 38400 for Internet use?  I have a 28.8 USR 
 GK> Sportster, and I have
 GK> had my port locked at 38400 for a long time.  I've just 
 GK> started playing around
 GK> with higher rates on the BBS, and I was wondering if the higher rate 
would
 GK> make much difference on the internet.
There's no harm in locking the port at 115200.  A lot of HTML (in fact, most 
of it) is highly compressible, and would benefit by having the higher speeds.
The faster transfers also reduce the CPU loading on your computer because 
stuff gets transfered in fast bursts instead of longer drawn-out transfers 
which tend to produce a lot more interrupts.
And of course, if you're into anything faster than 28.8/33.6k, you'll 
definitely want 57600, and even 115200 if you're getting X2 connections.  
I've seen X2 connections up to 51.3k, and I certainly wouldn't even think of 
driving a modem running that fast with a measly 57600bps link -- you'd be 
getting buffer ovverruns if you even tried that (while you're surfing to a 
fast site).  And buffer overruns are not pleasant things to deal with (the 
only solution, usually, is to either raise the locked port speed, or lower 
the speed of the modem itself).
--- Maximus/2 3.01
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* Origin: COMM Port OS/2 juge.com 204.89.247.1 (281) 980-9671 (1:106/2000)

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