We present a study of the traffic patterns for a dynamic and heavily accesses Web server environment, and the impact of such traffic patterns on Web server performance. Using the data form the official Web site during the 1998 Winter Olympic Games in Nagano, Japan, we develop traffic models to represent the process of user requests that are the input to the geographically-distributed Web server systems. Our analysis of the traffic data illustrates traffic patterns that exhibit both light-tailed and heavy-tailed behaviors. We then feed these traffic processes into one of the Web sever systems modeled as a general single-server queue and analyze the waiting-time process, which models the latency encountered by user requests, a key measurement of quality of service (Qos)
By: Marks S. Squillante, Li Zhang, David D. Yao
Published in: RC21500 in 1999
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