Line sharing cache: Exploring cache capacity with frequent line value locality

Abstract

This paper proposes a new last level cache architecture called line sharing cache (LSC), which can reduce the number of cache misses without increasing the size of the cache memory. It stores lines which contain the identical value in a single line entry, which enables to store greater amount of lines. Evaluation results show performance improvements of up to 35% across a set of SPEC CPU2000 benchmarks.