Proceedings 1997 International Conference on Parallel Architectures and Compilation Techniques (1997)
San Francisco, CA
Nov. 11, 1997 to Nov. 15, 1997
David H. Albonesi , University of Rochester
Israel Koren , University of Massachusetts
Next generation, wide-issue processors will require greater memory bandwidth than provided by present memory hierarchy designs. We propose techniques for increasing the memory bandwidth of multi-ported L1 Dcaches, large on-chip L2 caches, and dedicated memory ports while minimizing cycle time impact. These approaches are evaluated within the context of an 8-way superscalar processor design and next-generation VLSI, packaging, and RAM technologies. We show that the combined L1 and L2 cache enhancements can outperform conventional techniques by over 80%, and that even with an on-chip 512KB L2 cache, board-level caches provide significant enough performance gains to justify their higher cost.
D. H. Albonesi and I. Koren, "Improving the Memory Bandwidth of Highly-Integrated, Wide-Issue, Microprocessor-Based Systems," Proceedings 1997 International Conference on Parallel Architectures and Compilation Techniques(PACT), San Francisco, CA, 1997, pp. 126.