Chapter 4 DATAFLOW ANALYSIS FOR REAL-TIME EMBEDDEDMULTIPROCESSOR SYSTEM DESIGN

Abstract Dataflow analysis techniques are key to reduce the number of design iterations and shorten the design time of real-time embedded network based multiproces-sor systems that process data streams. With these analysis techniques the worst-case end-to-end temporal behavior of hard real-time applications can be derived from a dataflow model in which computation, communication and arbitration is modeled. For soft real-time applications these static dataflow analysis tech-niques are combined with simulation of the dataflow model to test statistical assertions about their temporal behavior. The simulation results in combination with properties of the dataflow model are used to derive the sensitivity of design parameters and to estimate parameters like the capacity of data buffers