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Virtualizing Mixed-Criticality Operating Systems
2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC), 2016The forever growing number of embedded control units in some applications such as cars or airplanes are increasing system complexity and making harder to coordinate all this hardware. The increasing capacity of embedded hardware and the advances in virtualization technology make it possible to deal with this problem.
Rodrigo Schmitt Meurer +2 more
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Smart Certification of Mixed Criticality Systems
2005High integrity applications, such as those performing safety or security critical functions, are usually built to conform to standards such RTCA DO-178B [1] or UK Def Stan 00-55 [2]. Typically such standards define ascending levels of criticality each of which requires a different and increasingly onerous level of verification.
Peter Amey, Roderick Chapman, Neil White
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Scheduling of mixed-criticality systems with RUN
2015 IEEE 20th Conference on Emerging Technologies & Factory Automation (ETFA), 2015Mixed-criticality systems emerged with the aim of reconciling safety requirements and efficient use of multi-processor or uniprocessor platforms. On multi-processors, recent works on mixed-criticality have produced impressive results in terms of speed-up factor. But these solutions, based on Pfair-like scheduling algorithms, entail too many preemptions
Romain Gratia +2 more
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On the Scheduling of Fault-Tolerant Mixed-Criticality Systems
Proceedings of the 51st Annual Design Automation Conference, 2014We consider in this paper fault-tolerant mixed-criticality scheduling, where heterogeneous safety guarantees must be provided to functionalities (tasks) of varying criticalities (importances). We model explicitly the safety requirements for tasks of different criticalities according to safety standards, assuming hardware transient faults.
Pengcheng Huang 0001 +2 more
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Service guarantee exploration for mixed-criticality systems
2014 IEEE 20th International Conference on Embedded and Real-Time Computing Systems and Applications, 2014Most mixed-criticality scheduling algorithms have the problem of service interruption for low-critical tasks, which has prompted several recent studies on providing various service guarantees for such tasks. In this paper, focusing on dual-criticality systems, we explore the best achievable service guarantees for low-critical tasks in different running
Hang Su 0008, Nan Guan, Dakai Zhu 0001
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A Wormhole NoC Protocol for Mixed Criticality Systems
2014 IEEE Real-Time Systems Symposium, 2014Lack of scalability and difficulties in predicting the temporal behaviour of bus-based architectures has lead to the development of Network-on-Chip (NoC) protocols that provide a schedulable resource for moving data across multi-core platforms. Wormhole switching and credit-based flow control protocols have been used to support flit-level priority ...
Alan Burns 0001 +2 more
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A System-on-a-Chip Platform for Mixed-Criticality Applications
2010 13th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing, 2010High–integrity systems are deployed in order to realize safety–critical applications. To meet the rigorous requirements in this domain, these systems require a sophisticated approach to design, verfication, and certification. Not only safety consideration shave an impact on a product’s overall dependability, but also security has to be taken into ...
Armin Wasicek +2 more
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A Practical Degradation Model for Mixed-Criticality Systems
2019 IEEE 22nd International Symposium on Real-Time Distributed Computing (ISORC), 2019Existing Mixed Criticality System (MCS) task models consider criticality as the relative importance of a task and use it to achieve graceful degradation of the system either by suspending or degrading tasks with relatively lower criticality level than the overloading task. Graceful degradation based on this notion of criticality as a relative parameter
Vijaya Kumar Sundar, Arvind Easwaran
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A Review of Recent Techniques in Mixed-Criticality Systems
Journal of Circuits, Systems and Computers, 2019Unlike traditional embedded systems that almost have only one criticality level, many complex embedded systems nowadays are mixed-critical and are more and more widely used. There has been a lot of research on mixed-criticality (MC) systems. In this paper, we present a survey on the MC systems on these research.
Hongxia Chai +5 more
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Memory-Aware Scheduling for Mixed-Criticality Systems
2016In this paper, by taking both memory-access and computation time cost into consideration, a two-phase execution, i.e. memory-access phase first to fetch the instructions and required data, and then computation, is proposed to model mixed criticality tasks.
Zheng Li 0006, Li Wang 0011
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