IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
Design and implementation of a random access file system for NVRAM
Mi ZhouXiaogang ChenYang LiuShunfen LiGezi LiXiaoyun LiZhitang Song
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JOURNALS FREE ACCESS

2016 Volume 13 Issue 4 Pages 20151045

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Abstract

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.

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© 2016 by The Institute of Electronics, Information and Communication Engineers
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