Design and implementation of a random access file system for NVRAM

IEICE Electronics Express

Mi Zhou¹  Xiaogang Chen¹  Xiaoyun Li¹  Gezi Li¹  Yang Liu²  Shunfen Li¹  Zhitang Song¹ 

[1] State Key Laboratory of Functional Materials for Informatics and Nanotechnology Laboratory, Shanghai Institute of Micro-system and Information Technology, Chinese Academy of Sciences;Neusoft

关键词: NVRAM;    file system;    performance;    VFS;   

DOI  :  10.1587/elex.13.20151045

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(11)Storage Class Memory (SCM) emerges as a potential technology because of its byte-addressability and non-volatility. However, existing file systems are not efficient for SCM because they are optimized for hard disks devices. In this paper, we propose a new file system called random access file system (RAFS), which is implemented on Linux as a prototype. In RAFS, we simplify system architecture and adopt memory mapping and XIP mechanisms to improve performance. We have analyzed and evaluated its performance with multiple workloads. Results show that RAFS outperforms Ext4 under the same condition, especially for random access scenarios.

【 授权许可】

Unknown