Energy efficient DVFS scheduling for mixed-criticality systems
Pengcheng Huang, Pratyush Kumar, Georgia Giannopoulou, Lothar Thiele · 2014
Consolidating functionalities with different safety requirements into a common platform gives rise to mixed-criticality systems. The state-of-the-art research has focused on providing heterogeneous timing guarantees for tasks of varying criticality levels. This is achieved by dropping less critical tasks when critical tasks overrun. However, with drastically increased computing requirements and the often battery-operated nature of mixed-criticality systems, energy minimization for such systems is also becoming crucial. In fact, this has already been possible since many modern processors are equipped with the capacity of dynamic voltage and frequency scaling (DVFS), where processor frequency can be reduced at runtime to save energy.