From UML to Performance Measures -Simulative Performance Predictions of IT-Systems using the JBoss Application Server with OMNET++

摘要

In this paper, we argue the case for thorough performance engineering already in the early development phases of complex IT-systems, particularly web-based ones on the example of the Open Source Application Server JBoss. We show the need for a fast and efficient modelling of web-architectures, shortly recall a proposed UML notation and conversion framework [Hennig02], report progress of our end-to-end integration of simulation into a commercial UML-Tool and demonstrate its benefit on the example of a JBoss-based application. The abstractions chosen for the JBoss EJB Application Server model in the OMNET++ Simulator are described and the predicted performance is compared to values observed in load tests on the finished system.