Abstract
Mixed criticality systems combine applications with different levels of safety within the same platform. Those applications execute under different modes, each representing an execution condition that can be required at runtime. This work proposes a mixed criticality schedulability analysis which is a modified version of the earliest deadline first scheduling paradigm. The analysis covers every possible execution condition by providing schedulability that is parametrized by the safety level. Besides, sensitivity analysis is developed for evaluating the impact of mixing criticality to schedulability and defining trade-offs between resource usage and schedulability. Test cases of real-time cyber physical systems are investigated to validate the mixed criticality analysis framework presented.
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