Operating Systems Support for Www Servers

The explosive growth of the WWW (World Wide Web) is placing a heavy demand on servers. Thus, improving server performance is important and can be achieved by scheduling resources more efficiently in operating systems. We have proposed a CPU resource scheduling policy for improving response time of a WWW server. This policy gives preferential use of the CPU resource to any process of a server that is predicted to be a server process handling an HTML file request. This allows users to view text data and the general layout of a WWW page in a timely manner during periods of high demand. In order to determine which processes are server processes handling HTML file requests, we introduced scheduling parameters SLP and RW. In this paper, we describe how we predicted and updated parameter RW based on the behavior of a WWW server, and present experimental validation of our method.