HAT: an efficient buffer management method for flash-based hybrid   storage systems

doi:10.1007/s11704-014-3364-7

CORC > 北京大学 > 信息科学技术学院

	HAT: an efficient buffer management method for flash-based hybrid storage systems
	Lv, Yanfei ; Cui, Bin ; Chen, Xuexuan ; Li, Jing
刊名	frontiers of computer science
	2014
关键词	flash memory SSD hybrid storage buffer management hotness aware REPLACEMENT ALGORITHM MEMORY LRU
DOI	10.1007/s11704-014-3364-7
英文摘要	Flash solid-state drives (SSDs) provide much faster access to data compared with traditional hard disk drives (HDDs). The current price and performance of SSD suggest it can be adopted as a data buffer between main memory and HDD, and buffer management policy in such hybrid systems has attracted more and more interest from research community recently. In this paper, we propose a novel approach to manage the buffer in flash-based hybrid storage systems, named hotness aware hit (HAT). HAT exploits a page reference queue to record the access history as well as the status of accessed pages, i.e., hot, warm, and cold. Additionally, the page reference queue is further split into hot and warm regions which correspond to the memory and flash in general. The HAT approach updates the page status and deals with the page migration in the memory hierarchy according to the current page status and hit position in the page reference queue. Compared with the existing hybrid storage approaches, the proposed HAT can manage the memory and flash cache layers more effectively. Our empirical evaluation on benchmark traces demonstrates the superiority of the proposed strategy against the state-of-the-art competitors.; Computer Science, Information Systems; Computer Science, Software Engineering; Computer Science, Theory & Methods; SCI(E); 中国科学引文数据库(CSCD); 0; ARTICLE; bin.cui@pku.edu.cn; 3; 440-455; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/389297]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Lv, Yanfei,Cui, Bin,Chen, Xuexuan,et al. HAT: an efficient buffer management method for flash-based hybrid storage systems[J]. frontiers of computer science,2014.
APA	Lv, Yanfei,Cui, Bin,Chen, Xuexuan,&Li, Jing.(2014).HAT: an efficient buffer management method for flash-based hybrid storage systems.frontiers of computer science.
MLA	Lv, Yanfei,et al."HAT: an efficient buffer management method for flash-based hybrid storage systems".frontiers of computer science (2014).