一种提高构件化嵌入式操作系统性能的方案

本文分析了现有构件化嵌入式操作系统所用调度算法存在的缺点，提出抢占阈值调度算法是更为合适的算法。通过仿真实验比较抢占阈值调度算法、非抢占式调度算法和FIFO(First-In-First-Out)调度算法的性能，证明了上述结论。通过分析现有嵌入式系统构件模型的特点，提出了一种构件模型以及将构件映射成任务的方式，还提出了一种设计方法。整个方案能提高构件化嵌入式操作系统的性能。
关键词 构件化嵌入式操作系统; 抢占阈值调度; FIFO 调度; 构件模型
A Scheme to Improve the Performance of Component Embedded Operating System
Wang Bao-Jin (Institute of Information and Engineering, PLA Information and Engineering University, Zhengzhou 450002) Abstract: In this paper, we analyze the faults of scheduling algorithm used by component embedded real-time operating systems. By comparing the performance of preemption scheduling, non-preemptive scheduling and FIFO scheduling algorithms, we present that preemption scheduling algorithm is more suitable for component
embedded operating systems. By analyzing the properties of existing component models, we propose a component models, a way mapping component to task and a design method. The scheme presented in this paper can improve the performance of component embedded operating system.
Keywords: component embedded operating system, preemption threshold scheduling, FIFO scheduling, component model