A performance simulator for DDS networks

摘要

The DDS (Data Distribution Service) is real-time communication middleware used for a large-scale network system. For performance evaluation of the DDS, we developed a DDS simulator on QualNet. The performance measures obtained from the DDS simulator include discovery-completion time, end-to-end message-transfer delay, the number of data messages and the user-data processing time. The DDS simulator makes it easy to modify and add DDS operations or behavior. From simulation and performance evaluation, users can analyze the strengths and weaknesses of various mechanisms, and DDS implementations, from different vendors.