Memory-efficient compressed filesystem architecture for NAND flash-based embedded systems

Abstract

Cost-effectiveness is one of the most critical factors in the development of low-end embedded systems. The use of a compressed filesystem is a simple but effective solution for achieving such costeffectiveness. However, since conventional compressed filesystems are designed for disk-like devices and relatively abundant computing resources, they are not suitable for low-end embedded systems with small amount of memory and NAND flash-based storage. This paper presents a memoryefficient compressed filesystem designed for low-end embedded systems and NAND flash memory. Experiments by prototype implementation show that the proposed filesystem outperforms conventional ones in terms of memoryefficiency and I/O performance. © Springer-Verlag Berlin Heidelberg 2007.