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Performance comparison of real-time architectures using simulation

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6 Author(s)
Heejo Lee ; Dept. of Comput. Sci. & Eng., Pohang Inst. of Sci. & Technol., South Korea ; K. Toda ; Jong Kim ; K. Nishida
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This paper presents a performance comparison of real-time system architectures. A discrete event-driven, task-based simulator is developed for evaluating the performance of parallel and distributed real-time systems. Real-time system components such as processor, network architectures, and scheduling policy are included in the simulator. Simulation results show that priority-based communication and scheduling are more suitable for real-time systems than FIFO-based. The strategy of having a dedicated processor, which produces no effect on task execution by scheduling and packet/interrupt handling, is proven to enhance schedulability and predictability. This paper suggests a method for finding an appropriate real-time architecture for users having real-time requirements through the performance prediction of real-time systems

Published in:

Real-Time Computing Systems and Applications, 1995. Proceedings., Second International Workshop on

Date of Conference:

25-27 Oct 1995