Performance analysis of a multithreaded Web server on multiprocessor

With the current explosive growth of the Web traffic, we have witnessed significant performance problems in Web servers. This stimulated several research efforts [1, 2, 3, 5] to develop high-performance Web servers based on the multithreading technique. The resulting software architectures of those Web servers are largely classified into three categories: RBW (Request-Based Web server), TBW (Task-Based Web server), and TPW (Thread Pool-based Web Server). In this paper we introduce the architecture of these three approaches and present their benchmarking results on;a 4-processor PC server running Linux. Unlike previous research efforts that were only focused on the static data (e.g., text and image files) in a single CPU machine, we have benchmarked three different architectures in a multiprocessor machine by using both static and dynamic data (e.g., CGI (Common Gateway Interface)) and by varying the number,of CPUs, data sizes, and amount of CGI request rates.