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An effective write policy for software coherence schemes

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2 Author(s)
Chen, Y.-C. ; Illinois Univ., Urbana, IL, USA ; Veidenbaum, A.V.

The authors study the write behavior and evaluate the performance of various write strategies and buffering techniques for a MIN-based multiprocessor system using the simple software coherence scheme. Hit ratios, memory latencies, total execution time, and total write traffic are used as the performance indices. The write-through write-allocate no-fetch cache using a write-back write buffer is shown to have a better performance than both write-through and write-back caches. This type of write buffer is effective in reducing the volume as well as bursts of write traffic. On average, the use of a write-back cache reduces by 60% the total write traffic generated by a write-through cache

Published in:

Supercomputing '92., Proceedings

Date of Conference:

16-20 Nov 1992