User access patterns to NCSA''s World Wide Web server

The World Wide Web (WWW) server at the National Center for Supercomputing Applications (NCSA) is one of the most heavily accessed WWW servers in the world. To increase our understanding of how users access this server and to provide a basis for assessing server and system software optimizations, we analyzed NCSA''s server logs for multiple weeks that span across a five month period. This paper presents the results of that analysis and discusses the implications for server design and extensiblity.