混合内存架构下数据放置研究综述  

Review of data placement in hybrid memory architecture

作　　者：林炳辉 张建勋[1] 乔欣雨 Lin Binghui;Zhang Jianxun;Qiao Xinyu(School of Information Technology Engineering,Tianjin University of Technology&Education,Tianjin 300222,China)

机构地区：[1]天津职业技术师范大学信息技术工程学院,天津300222

出　　处：《计算机应用研究》2024年第9期2585-2591,共7页Application Research of Computers

基　　金：中国高校产学研自然基金资助项目(2021FNA04016)。

摘　　要：当前基于DRAM和NVM的混合内存系统在系统结构领域的研究前景广阔,特别是对混合内存系统进行数据放置的研究已经成为国内外研究的热点。对混合内存架构下数据放置策略进行了研究,在介绍当前常见混合内存架构的基础上,对现有数据放置策略的设计思路进行了全面分析,主要涉及硬件/软件机制、内存访问特征、静态/动态分析、机器智能、触发方式和粒度选择等方面,并针对混合内存性能、功耗和耐久性的数据放置优化进行总结。综合分析发现,现有的混合内存数据放置策略在内存架构、数据迁移、计算成本和全局优化等方面还存在局限性,未来在架构设计以及内存管理方面的改进还有很大的研究探索空间和发展前景。The current research on hybrid memory systems based on DRAM and NVM is promising in the field of system architecture,especially the research on data placement in hybrid memory systems has become a research hotspot in domestic and foreign studies.This paper studied the data placement strategy in hybrid memory architecture.On the basis of introducing the common hybrid memory architectures,it comprehensively analyzed the design ideas of existing data placement strategies,mainly involving hardware/software mechanisms,memory access characteristics,static/dynamic analysis,machine intelligence,trigger modes,and granularity selection,and summarized the data placement optimization in hybrid memory in terms of performance,power consumption,and endurance.The comprehensive analysis reveals that existing data placement strategies in hybrid memory still have limitations in terms of memory architecture,data migration,computational cost,and global optimization.In the future,there is still a lot of research space and development prospects in improving architectural design and memory management.

关 键 词：混合内存 数据放置 非易失性存储器 研究综述 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]