P2FS: supporting atomic writes for reliable file system design in PCM storage
- Authors
- Lee, Eunji; Koh, Kern; Bahn, Hyokyung
- Issue Date
- Jun-2014
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Keywords
- phase-change memory; non-volatile memory; file system
- Citation
- IEICE ELECTRONICS EXPRESS, v.11, no.13
- Journal Title
- IEICE ELECTRONICS EXPRESS
- Volume
- 11
- Number
- 13
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/39456
- DOI
- 10.1587/elex.11.20140520
- ISSN
- 1349-2543
- Abstract
- This letter analyzes the characteristics of write operations in file systems for PCM (phase-change memory), and observes that a large proportion of writes only involve a small modification of the previous version. This observation motivates a new file system for PCM called P2FS, which reduces write traffic to PCM by exploiting the similarity of data between versions, while preserving the same reliability level of existing copy-on-write file systems. Experimental results show that P2FS reduces file I/O time by 48%, and energy consumption by 65%, on average, compared to copy-on-write.
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Collections - College of Information Technology > Department of Smart Systems Software > 1. Journal Articles
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