Evaluating the sustained performance of COTS-based messaging systems

5 Messaging systems, which include message brokers built on top of message-oriented middleware, have been used as middleware components in many enterprise application integration projects. There are many COTS-based messaging systems on the market, but there is little concrete understanding in the software industry on the performance of these different technologies. The authors have carried out a scenario-based evaluation of three leading messaging systems to provide insight into performance issues. The evaluation 10 process includes a study of the sustained performance of the system under load. The result of this study is used to derive a generic metric for quantifying a messaging system’s performance. The paper describes a synthetic transactional scenario, which is used for load tests and performance measurement. The results from executing this test scenario with three messaging systems are then presented and explained. Copyright c © 2003 John Wiley & Sons, Ltd. 15