Evaluation of worst-case execution time of tasks on multi-core processor

Abstract

In hard real-time systems, it is required to compute the worst-case execution time (WCET) of each task that has become a difficult problem. The increasing complexity of modern processor architectures makes achieving this objective more and more challenging. To measure the WCET of a task, it is necessary to develop a framework on multi-core platform considering the nature of a program and shared resources. Path analysis, one of the static-based approaches is used. It is important to take into account the analysis of paths as it calculates the execution time of each basic block with respect to the cache behavior. The WCET estimates of this analysis are performed using SimpleScalar simulator.