A Performance Study of Modern Web Server Applications

Authors:
Ramesh Radhakrishnan;Lizy Kurian John
Affiliations:
-;-
Venue:
Euro-Par '99 Proceedings of the 5th International Euro-Par Conference on Parallel Processing
Year:
1999

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Abstract

Web server programs are one of the most popular computer applications in existence today. Our goal is to study the behavior of modern Web server application programs to understand how they interact with the underlying Web server, hardware and operating system environment. We monitor and evaluate the performance of a Sun UltraSPARC system using hardware performance counters for different workloads. Our workloads include static requests (for HTML files and images) as well as dynamic requests in the form of CGI (Common Gateway Interface) scripts and Servlets. Our studies show that the dynamic workloads have CPIs (Cycles Per Instruction) approximately 20% higher than the static workloads. The major factors that we could attribute to this were higher instruction and data cache miss rates compared to the static workloads, and high external (L2) cache misses.