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基于频率时效感知的混合内存写冷热页面调度
A Hybrid Memory Writing Cold and Hot Page Scheduling Based on Frequency Time Interval
【摘要】 为了提高相变存储器和DRAM所组成混合内存中PCM的耐久性,减少页面在PCM上的写操作,通过一个新公式结合写访问频率的统计和最近写访问间隔对页面写冷热的影响,计算频率时效的写权值,并根据最近写频率和计算的频率时效权值来进行混合内存页面冷热页的调度。通过仿真分析比较,这种方法可以减少PCM页面的写次数。
【Abstract】 In view of an improvement of the durability of PCM in the hybrid memory composed of PCM and DRAM,as well as a reduction of the page writing operation on PCM,a new formula is used to calculate the write weight value of frequency aging with the statistics of the write access frequency and the influence of the latest write access interval on the page writing heat and cold combined together,followed by a calculation of the hot and cold pages of the hybrid memory according to the latest write frequency and the calculated frequency aging weight.Based on the simulation analysis and comparison,it is verified that this proposed method helps reduce the number of PCM page writing.
【Key words】 non-volatile memory； phase change memory； hybrid main memory； page write prediction；
- 【文献出处】 湖南工业大学学报 ,Journal of Hunan University of Technology , 编辑部邮箱 ,2021年03期
- 【分类号】TP333
- 【下载频次】65