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This paper presents an extension of EDF feasibility analysis for tasks that invoke accelerators. For embedded systems with hard real-time deadlines, it is important to be able to verify that all of the tasks will meet their deadlines. A missed deadline could result in catastrophic behaviour of the system. Hence the importance of feasibility analysis of schedules. The scheduling policy to be analyzed...
In this paper, we consider the problem of checking the feasibility of a set of n real-time tasks while provisioning for timely recovery from (at most) k transient faults. We extend the well-known processor demand approach to take into account the extra overhead that may be induced by potential recovery operations under earliest-deadline-first scheduling. We develop a necessary and sufficient test...
In the Komodo project a real-time Java system based on a multithreaded Java microcontroller has been developed. A main scheduling policy realized by hardware in the microcontroller core is a new scheme called Guaranteed Percentage (GP) scheduling. This scheme assigns each thread a guaranteed percentage of the processor power thus providing a strict isolation of the threads on the processor. To prevent...
In the Komodo project a real-time Java system based on a multithreaded Java microcontroller has been developed. A main scheduling policy realized by hardware in the microcontroller core is a new scheme called guaranteed percentage (GP) scheduling. This scheme assigns each thread a guaranteed percentage of the processor power thus providing a strict isolation of the threads on the processor. To prevent...
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