Mixed-Criticality Embedded Systems -- A Balance Ensuring Partitioning and Performance

Mixed-criticality systems have become a mainstream in industry and research due to their potential to decrease, size, weight, and power. Often research institutions and industry interpret the term ´mixed criticality´ differently. Hence research approaches and solutions are hard to deploy to industry. This paper discusses the background, the current state of research and industrial deployment of mixed-criticality systems from an industrial perspective. It presents the background of criticality, the safety and security processes, and some approaches of applications of research to real systems. The focus of this paper is partitioning, which is the separation of different applications of different criticality, and its impact on performance along with possible optimizations.