Performance comparison of real-time architectures using simulation

  • Authors:
  • Heejo Lee;K. Toda;Jong Kim;K. Nishida;E. Takahashi;Y. Yamaguchi

  • Affiliations:
  • -;-;-;-;-;-

  • Venue:
  • RTCSA '95 Proceedings of the 2nd International Workshop on Real-Time Computing Systems and Applications
  • Year:
  • 1995

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Abstract

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.