Paper Info
Title
Pattern-Guided File Compression With User-Experience Enhancement For Log-Structured File System On Mobile Devices
Abstract
Mobile applications exhibit unique file access patterns, often involving random accesses of write-mostly files and read-only files. The high write stress of mobile applications significantly impacts on the lifespan of flash-based mobile storage. To reduce write stress and save space without sacrificing user-perceived latency, this study introduces FPC, file access pattern guided compression. FPC is optimized for the random-writes and fragmented-reads of mobile applications. It features dual-mode compression: Foreground compression handles write-mostly files for write stress reduction, while background compression packs random-reading file blocks for boosted read performance. FPC exploits the out-of-place updating design in F2FS, a log-structured file system for mobile devices, for the best effect of the proposed dual-mode compression. Experimental results showed that FPC reduced the volume of total write traffic and executable file size by 26.1% and 23.7% on average, respectively, and improved the application launching time by up to 14.8%.
Year
Venue
DocType
2021
PROCEEDINGS OF THE 19TH USENIX CONFERENCE ON FILE AND STORAGE TECHNOLOGIES (FAST '21)
Conference
Citations 
PageRank 
References 
0
0.34
0
Authors
8
Name
Order
Citations
PageRank
Cheng Ji1115.98
Li-Pin Chang296995.90
Riwei Pan322.73
Chao Wu4158.86
Congming Gao500.68
Liang Shi67017.56
Tei-Wei Kuo73203326.35
Chun Jason Xue800.68