P2FS: Supporting atomic writes for reliable file system design in PCM storage

Eunji Lee; Kern Koh; Hyokyung Bahn

doi:10.1587/elex.11.20140520

P2FS: Supporting atomic writes for reliable file system design in PCM storage

Eunji Lee, Kern Koh, Hyokyung Bahn

Computer Science & Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

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.

Original language	English
Article number	20140520
Journal	IEICE Electronics Express
Volume	11
Issue number	13
DOIs	https://doi.org/10.1587/elex.11.20140520
State	Published - 19 Jun 2014

Keywords

File system
Non-volatile memory
Phase-change memory

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1587/elex.11.20140520

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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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N2 - 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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P2FS: Supporting atomic writes for reliable file system design in PCM storage

Abstract

Keywords

UN SDGs

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