一种低功耗动态可重构cache算法的研究

摘要

Pynamically reconfigurable the algorithm used the instruction-cycle to detect phase changes. In each phase, the state machine used the average access time to predict the cache access and obtained optimal configuration. The experimental results show that the algorithm can reduce cache power dissipation by 61% , but increasing CPI by 2% on average compared with four-way conventional cache, and further saves the energy consumption and reduces the performance loss compared to the previous works.%动态可重构cache算法根据指令时间数监测程序段的变化,确定容量调整.在程序段内,状态机根据平均访问时间对cache的访问进行预判,然后根据预判的结果确定当前程序段的cache结构.实验结果表明,此算法比传统四路组相联cache功耗降低61％,而性能损失只有2％左右.与已有算法相比,功耗和性能都得到进一步的提高.