LeCramFS: An efficient compressed file system for flash-based portable consumer devices

Seunghwan Hyun, Hyokyung Bahn, Kern Koh

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Cost-effectiveness is one of the most critical factors in the development of portable consumer devices. The use of compression techniques is a simple but effective solution for achieving such cost-effectiveness. This paper gives a comprehensive analysis of file system level compression techniques for portable consumer devices. Since conventional compressed file systems are optimized for disklike devices and relatively abundant computing resources, they are not suitable for portable devices with small amount of memory and weak processing power. This paper presents the design and implementation of LeCramFS, which is a new read-only compressed file system designed for small portable devices and flash memory. Experiments by implementation show that the proposed file system outperforms conventional ones in terms of memory-efficiency and I/O performance.

Original languageEnglish
Pages (from-to)481-488
Number of pages8
JournalIEEE Transactions on Consumer Electronics
Issue number2
StatePublished - May 2007

Bibliographical note

Funding Information:
1This work has been supported by the research fund of Samsung Electronics Co. Ltd.


  • Compressed file system
  • CramFS
  • Flash memory
  • Portable device
  • SquashFS


Dive into the research topics of 'LeCramFS: An efficient compressed file system for flash-based portable consumer devices'. Together they form a unique fingerprint.

Cite this