Prediction of the Performance of Web Based Systems

Complex Web based information systems are organized as a set of component services, communicating using the client-server paradigm. The performance prediction of such systems is complicated by the fact that the service components are strongly inter-dependent. To overcome this issue, it is proposed to use simulation techniques. Extensions to the available network simulation tools are proposed to support this. The authors present the results of multiple experiments with web-based systems, which were conducted to develop a model of client-server interactions adequately describing the relationship between the server response time and resource utilization. This model was implemented in the simulation tools and its accuracy verified against a testbed system configuration.

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