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capacity.doc
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1989-04-23
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895b
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25 lines
The answer to the question "What is the capacity of BB" is very complex
and depends on:
1) Processor speed
2) DOS Memory size (EMS doesn't count)
3) Number and type of ports.
4) Number of messages kept in BBS
The latter two eat up memory which pressures #2. As far as I can tell,
here are some guidelines: 4.77 Mhz XT - 3 ports, about 6 connects. 10
Mhz AT - 4 ports, about 10 connects. You can trade ports for connects.
No one has run more than 4 ports so am not sure what happends then.
I assumed full 640K.
The DRSI PC*PA cards are a special case because the act like one port.
I would say a regular XT could run 4 ports and 8 total connects before
resource exhaustion.
Some memory numbers:
Each port requires about 15-18K (Not true for PC*PA)
Each connect requires about 12K
Each BID requires 13 bytes
Each message needs 250 bytes