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⟦5f778dadd⟧ Wang Wps File
Length: 2311 (0x907)
Types: Wang Wps File
Notes: IDCN - EL-BIT Vol. II
Names: »4297A «
Derivation
└─⟦2d59e51b9⟧ Bits:30006026 8" Wang WCS floppy, CR 0397A
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WangText
IDCN - VOLUME II SYS/83-11-18
TECHNICAL PROPOSAL
Page
4 SYSTEM PERFORMANCE ............................
4 ̲ ̲S̲Y̲S̲T̲E̲M̲ ̲P̲E̲R̲F̲O̲R̲M̲A̲N̲C̲E̲
An estimate of the work load on the proposed IDCN has
been calculated, based on the transaction volumes provided.
Each of the four nodes are assumed to process the following
traffic load: (Incoming I/C and outgoing O/G):
Per busy hour
I/C Message from TP 900
I/C Message from other nodes and Conc. 2600
O/G Message to TP 2600
O/G Message to other nodes and Conc. 4200
Incoming messages are in average delivered to 3 terminals.
The above stated peak hour traffic is equal to 15%
of a day's traffic.
S̲Y̲S̲T̲E̲M̲ ̲P̲E̲R̲F̲O̲R̲M̲A̲N̲C̲E̲ ̲E̲S̲T̲I̲M̲A̲T̲E̲
Transaction No per Disc Executed
peak accesses instr.
hour per per
Type trans Total trans Total
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
I/C from TP 900 10 9,000 200 180,000
I/C - other Nodes 2,600 5 13,000 50 130,000
O/G to TP 2,600 3 7,800 50 130,000
O/G to other Nodes 4,200 3 12,600 50 210,000
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
Total per peak hour 42,400 650,000
Total per average second 11.8 180,6
Total per peak second
(peak = 3 x average) 35.4 541,7
Total available resource 80 1000
Utilization 44% 54%
=== ===
D̲I̲S̲C̲ ̲C̲A̲P̲A̲C̲I̲T̲Y̲ ̲H̲A̲S̲ ̲B̲E̲E̲N̲ ̲E̲S̲T̲I̲M̲A̲T̲E̲D̲ ̲A̲S̲ ̲F̲O̲L̲L̲O̲W̲S̲
I/C messages per hour 900 + 2600 3,500
I/C Messages per day 23,333
I/C messages for 4 days 93,333
Total storage req. (1500 ch. per message) 150 Mb
Total storage available (60 + 2 x 150) 360
Mb
Utilization 42%
