LLLFS: A Low-latency Library File System for Persistent Memory

被引：0

作者：

Matsuzawa, Keiichi ^{[1
]}

Shinagawa, Takahiro ^{[2
]}

机构：

[1] Hitachi Ltd, Yokohama, Kanagawa, Japan

[2] Univ Tokyo, Tokyo, Japan

来源：

2022 IEEE/ACM 15TH INTERNATIONAL CONFERENCE ON UTILITY AND CLOUD COMPUTING, UCC | 2022年

关键词：

D O I：

10.1109/UCC56403.2022.00062

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Persistent memory (PM) is a promising storage medium for reducing file access latency, which is critical for modern applications. Unfortunately, traditional storage stacks designed for slow media significantly impair the low-latency access capability of PM. We propose LLLFS, a low-latency library file system for PM. Based on the observation that many modern applications access files under their directories exclusively, LLLFS stores both file data and metadata in a process-local file system on PM so that files are fully accessible in user space without system calls and synchronization. LLLFS keeps POSIX compatibility while allowing application-specific parameter tuning. Experimental results demonstrated that LLLFS outperformed conventional and PM-optimized file systems by 56.0% and 37.7%, respectively, in database update operations.

引用

页码：352 / 359

页数：8

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