An Implementation of an Append-only File System for Wearable Computers
Hideki Onoda, Kenji Hatano, Jun Miyazaki, Shunsuke Uemura · 2004
Users desire their electronic assistance on wearable computers. In order to recommend information to users automatically, use of an active database is effective. Since an active database requires a large number of disk accesses, the system has to be able to access data at high speed from/to a tiny disk drive. However the data access speed of tiny disks is low because their seek time and rotational latency are inferior to those of desktop models. We make use of a log-structured file system for the sequential access that decreases the latency. In order to evaluate its performance and show the efficiency of the proposed log-based data access, we compare the proposed method with a conventional page-based one.