Design and evaluation of a user-level file system for fast storage devices
- Authors
- Son, Y.; Song, N.Y.; Han, H.; Eom, H.; Yeom, H.Y.
- Issue Date
- Sep-2015
- Publisher
- Springer New York LLC
- Keywords
- Fast storage device; File system; I/O stack; Low latency I/O
- Citation
- Cluster Computing, v.18, no.3, pp 1075 - 1086
- Pages
- 12
- Journal Title
- Cluster Computing
- Volume
- 18
- Number
- 3
- Start Page
- 1075
- End Page
- 1086
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/60837
- DOI
- 10.1007/s10586-015-0465-5
- ISSN
- 1386-7857
1573-7543
- Abstract
- Lately, fast storage devices are rapidly increasing in social network services, cloud platforms, etc. Unfortunately, the traditional Linux I/O stack is designed to maximize performance on disk-based storage. Emerging byte-addressable and low-latency non-volatile memory technologies (e.g., phase-change memories, MRAMs, and the memristor) provide very different characteristics, so the disk-based I/O stack cannot lead to high performance. This paper presents a high performance I/O stack for the fast storage devices. Our scheme is to remove the concept of block and to simplify the whole I/O path and software stack, which results in only two layers that are the byte-capable interface and the byte-aware file system called BAFS. We aim to minimize I/O latency and maximize bandwidth by eliminating the unnecessary layers and supporting byte-addressable I/O without requiring changes to applications. We have implemented a prototype and evaluated its performance with multiple benchmarks. The experimental results show that our I/O stack achieves 6.2 times on average and up to 17.5 times performance gains compared to the existing Linux I/O stack.
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Collections - College of Software > School of Computer Science and Engineering > 1. Journal Articles
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