File Access Pattern Collection Scheme based on Repetitiveness
Jun-Hyoung Hwnag-Bo, Seong-U Seok, Dae-Hwa Seo · Jeongbo gwahaghoe nonmunji. si'seu'tem mich i'lon · 2001
This paper presents the SIC(Size-Interval-Count) prefetching scheme that can record the file access patterns of applications within a relatively small space of memory based on the repetitiveness of the file access patterns. Several knowledge-based prefetching methods were recently introduced, which includes high correctness in predicting future accesses of applications. They records the access patterns of applications and uses recorded access pattern information to predict which blocks will be requested next. Yet, these methods require to much memory space. Accordingly, the proposed method then uses the recorded file access patterns, referred to as SIC access pattern information, to correctly predict the future accesses of the applications. The proposed prefetching method improved the response time by about 40% compared to the general file system and showed remarkable memory efficiency compared to the previously knowledge-based prefetching methods.