【摘要】 实时调度是实时操作系统研究的重点之一,实时调度策略的评价更是研究的难点。本文采用UML(Unified Modeling Language)对实时操作系统中的进程调度这一核心问题进行建模设计了一个实时操作系统的仿真平台。建模过程中以虚拟时间为驱动,以任务为调度的基本单位,以随机数发生器生成系统负载。利用该平台,研究开发人员可以方便的测试评价新的调度策略和算法。同时,本文可以作为采用UML进行建模的一个范例。更多还原

【Abstract】 Scheduling policy is a hot spot in research of modern real-time OS. The evaluation of scheduling policy is the difficulty in the research. In order to verify the validity of scheduling policy, we designed a virtual simulation system for the process scheduling of OS by the use of UML method. This paper presents the simulation system taking virtual time for driver, taking task for the underlying scheduling object and taking random producer for producer of system load. This paper can be used as a paradigm in the modeling with UML (Unified Modeling Language).更多还原