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[20] H. Yoon, K. Y. Lee, and M. T. Liu, ``Performance Analyis of Multibuffered Packet Switching Networks in Multiprocessor Systems'', IEEE Transactions on Computers, vol. 39, no. 3, pp. 319 327, March
 

Summary: 9
[20] H. Yoon, K. Y. Lee, and M. T. Liu, ``Performance Analyis of Multibuffered Packet Switching Networks
in Multiprocessor Systems'', IEEE Transactions on Computers, vol. 39, no. 3, pp. 319 ­ 327, March
1990.
[21] B. Zhou and M. Atiquzzaman, ``Performance of Output Multibuffered Multistage Interconnection
Networks Under Non­Uniform Traffic Patterns'', International Workshop on Modeling, Analysis and
Simulation of Computer and Telecommunication Systems (MASCOTS'94), North Carolina, pp. 405 ­
406, Jan. ­ Feb. 1994.

8
The simulations have demonstrated that multistage blocking networks have the
unfortunate property that a sufficient concentration of references to one particular output (a
hot­spot) can degrade the response of the network to all references, and not just those to the
hot­spot link. The potential degradation is sufficient enough to cripple system performance.
Due to the increase in the contention at the hot link with an increase in the hot­spot
probability, normalized cell delay increases significantly with an increase in the buffer size. A
significant linear increase in cell delay caused by an increase of buffer size can degrade the
performance of the MIN and hence override any potential throughput gain. Higher hot request
probability also contributes to a faster increase rate of cell delay.
References

  

Source: Atiquzzaman, Mohammed - School of Computer Science, University of Oklahoma

 

Collections: Computer Technologies and Information Sciences