ACAR: An Adaptive Cost Aware Cache Replacement Approach for Flash Memory

摘要：

Flash memory has been gaining more popularity as a substi tution for magnetic disk. However, due to asymmetric IO latency, cache management policy needs to be reconsidered in systems equipped with flash. A novel buffer replacement approach named ACAR, which stands for Adaptive Cost Aware cache Replacement, is proposed in this paper to address this problem. Taking operation cost into consideration, ACAR allocates two pools for clean and dirty pages separately. In addition, dynamical pool size tuning is also performed according to IO pattern evolvement, Furthermore, hot data recognition capacity is realized in an enhanced version of ACAR. Experiments with artificial and real IO traces demonstrate ACAR outperforms the state-of-the-art cache replacement strategies.

作者: Yanfei Lv Xuexuan Chen Bin Cui

作者单位: School of Electronics Engineering and Computer Science, Peking University Key Lab of High Confidence Software Technologies (Ministry of Education), Peking University

会议类型: 国际会议

会议名称: 11th International Conference,WAIM 2010(第十一届网络时代管理国际会议)

会议地点: 九寨沟

会议语种:英文

页码: 558-569

在线出版日期: 2010-07-14（万方平台首次上网日期，不代表论文的发表时间）