A Survey of Non-Volatile Main Memory File Systems

doi:10.1007/s11390-023-1054-3

	A Survey of Non-Volatile Main Memory File Systems
	Wang, Ying 1; Jia, Wen-Qing ; Jiang, De-Jun ; Xiong, Jin
	2023-04-01
发表期刊	JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY
ISSN	1000-9000
卷号	38 期号:2 页码:348-372
摘要	Non-volatile memories (NVMs) provide lower latency and higher bandwidth than block devices. Besides, NVMs are byte-addressable and provide persistence that can be used as memory-level storage devices (non-volatile main memory, NVMM). These features change storage hierarchy and allow CPU to access persistent data using load/store instructions. Thus, we can directly build a file system on NVMM. However, traditional file systems are designed based on slow block devices. They use a deep and complex software stack to optimize file system performance. This design results in software overhead being the dominant factor affecting NVMM file systems. Besides, scalability, crash consistency, data protection, and cross-media storage should be reconsidered in NVMM file systems. We survey existing work on optimizing NVMM file systems. First, we analyze the problems when directly using traditional file systems on NVMM, including heavy software overhead, limited scalability, inappropriate consistency guarantee techniques, etc. Second, we summarize the technique of 30 typical NVMM file systems and analyze their advantages and disadvantages. Finally, we provide a few suggestions for designing a high-performance NVMM file system based on real hardware Optane DC persistent memory module. Specifically, we suggest applying various techniques to reduce software overheads, improving the scalability of virtual file system (VFS), adopting highly-concurrent data structures (e.g., lock and index), using memory protection keys (MPK) for data protection, and carefully designing data placement/migration for cross-media file system.
关键词	non-volatile main memory (NVMM) file system performance scalability crash consistency data protection crossmeida
DOI	10.1007/s11390-023-1054-3
收录类别	SCI
语种	英语
资助项目	Major Research Plan of the National Natural Science Foundation of China[92270202] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB44030200]
WOS研究方向	Computer Science
WOS类目	Computer Science, Hardware & Architecture ; Computer Science, Software Engineering
WOS记录号	WOS:001017832400010
出版者	SPRINGER SINGAPORE PTE LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/21296
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Wang, Ying
作者单位	1.Chinese Acad Sci, Inst Comp Technol, State Key Lab Processors, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Comp Technol, Res Ctr Adv Comp Syst, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ying,Jia, Wen-Qing,Jiang, De-Jun,et al. A Survey of Non-Volatile Main Memory File Systems[J]. JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,2023,38(2):348-372.
APA	Wang, Ying,Jia, Wen-Qing,Jiang, De-Jun,&Xiong, Jin.(2023).A Survey of Non-Volatile Main Memory File Systems.JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,38(2),348-372.
MLA	Wang, Ying,et al."A Survey of Non-Volatile Main Memory File Systems".JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY 38.2(2023):348-372.