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Experimental analysis of cache memories for interconnect controllers

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2 Author(s)
Sheu, T.-L. ; IBM Corp., Research Triangle Park, NC, USA ; Shieh, Y.-B.

The effects of cache memories on the performance of interconnect controllers (ICs) are analyzed using trace-driven simulation. Simulation results show that the controllers which interconnect hosts to LANs have a higher hit ratio than those that interconnect network devices to LANs. The impact of cache sizes, set associativity, and line sizes on cache performance is also investigated. A significant observation is that, although increasing the sizes can result in a higher hit ratio, it can also considerably increase traffic to main memory, thereby degrading overall system performance. A method of determining an optimal line size that produces the best overall system performance is therefore needed. A simple analytical model for determining the optimal line size as a function of cache size is presented

Published in:

Local Computer Networks, 1990. Proceedings., 15th Conference on

Date of Conference:

30 Sep-3 Oct 1990