Issue No. 03 - March (1985 vol. 34)
J.E. Smith , Department of Electrical and Computer Engineering, University of Wisconsin-Madison
Instruction cache replacement policies and organizations are analyzed both theoretically and experimentally. Theoretical analyses are based on a new model for cache references ?the loop model. First the loop model is used to study replacement policies and cache organizations. It is concluded theoretically that random replacement is better than LRU and FIFO, and that under certain circumstances, a direct-mapped or set-associative cache may perform better than a full-associative cache organization. Experimental results using instruction trace data are then given and analyzed. The experimental results indicate that the loop model provides a good explanation for observed cache performance.
set-associative, Cache memories, direct-mapped, fully associative, loop model, memory organization, replacement algorithms
J. Smith and J. Goodman, "Instruction Cache Replacement Policies and Organizations," in IEEE Transactions on Computers, vol. 34, no. , pp. 234-241, 1985.