Task scheduling observation and stack safety analysis in real time distributed systems using a simulation tool

This paper presents the ReTiS simulation tool and its use for real-time application analysis. Simulation concerns the operational architecture and takes into account the software (executable code of real-time tasks and real-time operating system) and the hardware (set of processors and networks). In this paper we show a mechanism that allows to detect task switch and to analyze task´s stack (usage and corruption). This mechanism neither requires any application nor operating system code modification. We show its interest for the analysis of the temporal behavior of real-time applications in a distributed system