TY - GEN
T1 - A study of integrated prefetching and caching strategies
AU - Cao, Pei
AU - Felten, Edward William
AU - Karlin, Anna R.
AU - Li, Kai
N1 - Publisher Copyright:
© 1995 ACM.
PY - 1995/5/1
Y1 - 1995/5/1
N2 - Prefetching and caching are effective techniques for improving the performance of file systems, but they have not been studied in an integrated fashion. This paper proposes four properties that optimal integrated strategies for prefetching and caching must satisfy, and then presents and studies two such integrated strategies, called aggressive and conservative. We prove that the performance of the conservative approach is within a factor of two of optimal and that the performance of the aggressive strategy is a factor significantly less than twice that of the optimal case. We have evaluated these two approaches by trace-driven simulation with a collection of file access traces. Our results show that the two integrated prefetching and caching strategies are indeed close to optimal and that these strategies can reduce the running time of applications by up to 50%.
AB - Prefetching and caching are effective techniques for improving the performance of file systems, but they have not been studied in an integrated fashion. This paper proposes four properties that optimal integrated strategies for prefetching and caching must satisfy, and then presents and studies two such integrated strategies, called aggressive and conservative. We prove that the performance of the conservative approach is within a factor of two of optimal and that the performance of the aggressive strategy is a factor significantly less than twice that of the optimal case. We have evaluated these two approaches by trace-driven simulation with a collection of file access traces. Our results show that the two integrated prefetching and caching strategies are indeed close to optimal and that these strategies can reduce the running time of applications by up to 50%.
UR - http://www.scopus.com/inward/record.url?scp=84921260656&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84921260656&partnerID=8YFLogxK
U2 - 10.1145/223587.223608
DO - 10.1145/223587.223608
M3 - Conference contribution
AN - SCOPUS:84921260656
T3 - Proceedings of the 1995 ACM SIGMETRICS Joint International Conference on Measurement and Modeling of Computer Systems, SIGMETRICS 1995/PERFORMANCE 1995
SP - 188
EP - 197
BT - Proceedings of the 1995 ACM SIGMETRICS Joint International Conference on Measurement and Modeling of Computer Systems, SIGMETRICS 1995/PERFORMANCE 1995
A2 - Gaither, Blaine D.
PB - Association for Computing Machinery, Inc
T2 - 1995 ACM SIGMETRICS Joint International Conference on Measurement and Modeling of Computer Systems, SIGMETRICS 1995/PERFORMANCE 1995
Y2 - 15 May 1995 through 19 May 1995
ER -