Grid Application Performance Prediction: a Case Study in BROADEN

The BROADEN (Business Resource Optimisation for Aftermarket and Design on Engineering Networks) project aims to build a Rolls-Royce Grid as a proving ground for utilising Grid services technology. One of the central applications in this project is XTO ((eXtract Track Order) which is used to facilitate distributed diagnostics support for aircraft engines. One of the key elements in BROADEN is the ability to predict XTO applications run-time. In this paper a SNAP-base (Service Negotiation Acquisition Protocol) resource broker is extended to include a QoS (Quality of Service) Manager which utilises a run-time historical database that allows for such prediction to take place. The performance results presented in terms of predicted run-time that the use of this manager can provide show the potential of this approach on a Grid test-bed.