Higher Fire ICQ!

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>>>>> "Brian" == Brian K Berger <BKBerger@eli.elilabs.com> writes:

    >> -----Original Message----- From: Robert J. Brown
    >> [mailto:rj@eli.elilabs.com] Sent: Saturday, September 26, 1998
    >> 17:18 >>>>> "Jerry" == Jerry Welch <tlwitness@juno.com> writes:
    >> 
    Jerry> Hello everyone!  I was wondering how many people here would
    Jerry> be interested in a semi-regular Higher Fire ICQ session?
 
    >> This concept comes up several times a year.  There already
    >> exists a MOO called BeulahMOO here at telnet:elilabs.com:7777

    Brian> I wonder at the limit of members who can use ICQ. I was
    Brian> reading the agreement today when I reinstalled it on my
    Brian> machine. Bro Brown's MOO can hold many members. If I am not
    Brian> mistaken, nearly unlimited.

The real limit is bandwidth to the internet.  Every line typed by one
person gets repeated once for each logged in user, so if we have say
100 users online, each keystroke becomes 100 keystrokes.  At 64 KBPS
on a single ISDN B-channel, we get 8 Kbytes/sec, or 8000
keystrokes/sec.

If we assume that only a single person types at a time (it usually
works somewhat that way), but types at 120 WPM (fat chance!), then
that is 600 strokes/min, or 10 strokes/sec.  If we have 100 logged in
users, then we are running 1000 bytes/sec.  Now this must get wrapped
up in TCP packets, but the original source strokes are coming in
individually, and the echoed strokes are going out as full packets.
The ISDN line is 64K bytes/sec in each direction, so only the output
direction matters here.  We are running between 1/8 and 1/4 bandwidth
with 100 users that can type at 120 WPM.

I do not see any problem hosting the entire Higher-Fire community all
at once.

-- 
--------  "And there came a writing to him from Elijah"  [2Ch 21:12]  --------
R. J. Brown III  rj@elilabs.com http://www.elilabs.com/~rj  voice 847 543-4060
Elijah Laboratories Inc. 457 Signal Lane, Grayslake IL 60030  fax 847 543-4061
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