What to Make of Multicore Processors for Reliable Real-Time Systems?

Baker, Theodore P.

doi:10.1007/978-3-642-13550-7_1

Cited by 6 publications

(2 citation statements)

References 42 publications

(53 reference statements)

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“…Instead, dynamic scheduling techniques, such as earliest deadline first (EDF) or rate monotonic scheduling (RMS), were often preferred due to their flexibility, sustainability and well-known properties (see [2]). …”

Section: Discussionmentioning

confidence: 99%

Model-based generation of static schedules for safety critical multi-core systems in the avionics domain

Hilbrich

Goltz

2011

Proceedings of the 4th International Workshop on Multicore Software Engineering

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Static schedules are used in safety critical systems to achieve predictable, real-time behavior. While it was possible to construct static schedules manually for simple, single-core systems, the increase in complexity introduced by multi-core processors and the demand for flexible and dynamic engineering processes in the avionics domain, require a novel approach for their automatic generation. This paper describes ongoing trends in the avionics domain to further underline engineering constraints encountered, when introducing multi-core processors in a safety critical area. By focussing on the requirement of a predictable behavior, a model-based approach for the generation of static schedules for complex multi-core systems is presented. It incorporates the usage of external resources, which is essential to achieve deterministic resource access and real-time behavior on hardware architectures with multiple execution units

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Section: Discussionmentioning

confidence: 99%

Model-based generation of static schedules for safety critical multi-core systems in the avionics domain

Hilbrich

Goltz

2011

Proceedings of the 4th International Workshop on Multicore Software Engineering

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“…Baker presented the technical report which reviewed hard real-time multiprocessor scheduling and advances in the analysis of arbitrary sporadic task systems under fixed-priority and EDF scheduling policies [3].…”

Section: Related Work Schedulingmentioning

confidence: 99%

Synchronization in Embedded Real-Time Operating Systems

2014

IJAERD

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-Real-time multiprocessor systems are now commonplace. Manufacturers of traditionally uniprocessor embedded systems are also shifting towards multi-processor or multi-core platforms to obtain high computing performance. Embedded systems are the computing devices hidden inside a vast array of everyday products and appliances such as cell phones, toys, handheld PDAs, cameras, etc. An embedded system is various type of computer system or computing device that performs a dedicated function and/or is designed for use with a specific embedded software application. The Real Time Operating System (RTOS) supports applications that meet deadlines in addition to providing logically correct results. In this paper, we will discuss the study and analysis of the scheduling and synchronization. It also presents a system that can be schedule multiple tasks using global EDF scheduler and share the resource among tasks using preemptive synchronization algorithm. The main objective is to share resource among task sets and reduce the average waiting time and jitter for task. It considers global dynamic-priority preemptive multiprocessor scheduling of constrained-deadline periodic tasks that share resources in a non-nested manner. In the addition, a resourcesharing protocol (i.e. priority inheritance protocol) has been discussed to decrease the blocking overhead of tasks, which reduces the total utilization and has the potential to reduce the number of required processors.

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