Performance evaluation of analysis methods for arbitrating non-preemptive resource access in compositional real-time systems

In this paper, we compare and survey different ways to model the scheduling delays corresponding to non-preemptive critical sections being executed by the tasks of different components that ultimately need to share one processor. We focus on the performance of compositional timing analyses for systems and we compare different protocols for the arbitration of tasks that wish to execute critical sections. Such analysis methods support timing predictable composition of independently validated components. This validation consists of analyzing the worst-case impact of critical sections on the schedules of the component´s tasks. Finally, we evaluate the performance of the analysis methods by means of a simulation study.