Using data clustering to improve cleaning performance for plash memory
Software—Practice & Experience
Cleaning policies in mobile computers using flash memory
Journal of Systems and Software
Practical File System Design with the Be File System
Practical File System Design with the Be File System
Memory Management in Flash-Memory Disks with Data Compression
IWMM '95 Proceedings of the International Workshop on Memory Management
Conquest: Better Performance Through a Disk/Persistent-RAM Hybrid File System
ATEC '02 Proceedings of the General Track of the annual conference on USENIX Annual Technical Conference
An Adaptive Striping Architecture for Flash Memory Storage Systems of Embedded Systems
RTAS '02 Proceedings of the Eighth IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS'02)
Energy characterization of filesystems for diskless embedded systems
Proceedings of the 41st annual Design Automation Conference
Algorithms and data structures for flash memories
ACM Computing Surveys (CSUR)
Understanding the Linux Kernel, 2nd Edition
Understanding the Linux Kernel, 2nd Edition
Storage alternatives for mobile computers
OSDI '94 Proceedings of the 1st USENIX conference on Operating Systems Design and Implementation
A comparison of file system workloads
ATEC '00 Proceedings of the annual conference on USENIX Annual Technical Conference
Architectures and optimization methods of flash memory based storage systems
Journal of Systems Architecture: the EUROMICRO Journal
MFTL: A Design and Implementation for MLC Flash Memory Storage Systems
ACM Transactions on Storage (TOS)
Underpowering NAND flash: profits and perils
Proceedings of the 50th Annual Design Automation Conference
| Hi-index | 0.00 |
The JFFS2 file system for flash memory compresses files before actually writing them into flash memory. Because of this, multimedia files, for instance, which are already compressed in the application level go through an unnecessary and time-consuming compression stage and cause energy waste. Also, when reading such multimedia files, the default use of disk cache results in unnecessary main memory access, hence an energy waste, due to the low cache hit ratio. This paper presents two techniques to reduce the energy consumption of the JFFS2 flash file system for power-aware applications. One is to avoid data compression selectively when writing files, and the other is to bypass the page caching when reading sequential files. The modified file system is implemented on a PDA running Linux and the experiment results show that the proposed mechanism effectively reduces the overall energy consumption when accessing continuous and large files.