Adaptive Cell Allocation Cache using Phase Detection Technique

Abstract

Multi-core processors are widely used to improve performance of computer systems. To achieve both high performance and low power consumption, many researches from device level to processor architecture or application software level have been done. This paper focuses to cache system which is one of the significant module which consumes large power. To achieve both high performance and low power consumption, Cell Allocation Cache is proposed which is similar to dynamic cache partitioning technique, but it allocates cache spaces called “Cell” which is smaller than a way. Cell Allocation Cache can achieve better performance than normal cache and cache partitioning. However, Cell Allocation Cache requires parameters to optimize cache performance. This paper proposes automatic parameter tuning technique for Cell Allocation Cache. According to our evaluation results, our automatic parameter tuning technique can achieve 2.3 and 2.9 better percent point compared to cache hit ratio of normal and cache partitioning technique, respectively, without hand tuning of cache control parameters.