Evaluation of caching strategies for an Internet server

We look at a number of issues in organizing a file system cache in an Internet multimedia server. Traces from NCSA World-Wide-Web (WWW) server are used in this study. We study several caching strategies for improving the overall performance of such a server and show that request response time can be improved by some of the replacement policies that take size of the request into account. The new policies perform better as the video/audio content increases in the file system workload. We also show that previously proposed cache sharing strategies improve performance significantly in these multimedia servers.