Mixed-criticality system (MCS) is one of the upcoming and most challenging research areas in embedded systems. Real-time (RT) scheduling for MCS is a key aspect done during design time to analyze the schedulability and strictly guarantee the timing of various critical tasks. This paper tries to study if the existing non-MCS preemptive scheduling approach for periodic and aperiodic tasks can be extended to uniprocessor MCS. A comparison between the maximum response time for the tasks in a non-MCS and MCS is performed. It is inferred that the conventional preemptive scheduler is sufficient but does not give minimal response time for a high critical task. This provides the groundwork to further explore and contribute to the research area.
Dr. Anju Pillai S. and J, S., “Towards Mixed Criticality Real time Scheduling”, IEEE International Conference on Computational Intelligence and Computing Research (IEEE ICCIC). 2018.