F2FS is a Linux file system designed to perform well on modern flash storage devices. The file system builds on append-only logging and its key design decisions were made with the characteristics of flash storage in mind. This paper describes the main design ideas, data structures, algorithms and the resulting performance of F2FS.
Experimental results highlight the desirable performance of F2FS; on a state-of-the-art mobile system, it outperforms EXT4 under synthetic workloads by up to 3.1 (iozone) and 2 (SQLite). It reduces elapsed time of several realistic workloads by up to 40%. On a server system, F2FS is shown to perform better than EXT4 by up to 2.5 (SATA SSD) and 1.8 (PCIe SSD).
Open Access Media
USENIX is committed to Open Access to the research presented at our events. Papers and proceedings are freely available to everyone once the event begins. Any video, audio, and/or slides that are posted after the event are also free and open to everyone. Support USENIX and our commitment to Open Access.
@inproceedings {188454,
author = {Changman Lee and Dongho Sim and Jooyoung Hwang and Sangyeun Cho},
title = {F2FS: A New File System for Flash Storage},
booktitle = {13th {USENIX} Conference on File and Storage Technologies ({FAST} 15)},
year = {2015},
isbn = {978-1-931971-201},
address = {Santa Clara, CA},
pages = {273--286},
url = {https://www.usenix.org/conference/fast15/technical-sessions/presentation/lee},
publisher = {{USENIX} Association},
}
Twitter
Facebook
LinkedIn
Google+
YouTube
connect with us