VxWorks提供的多任务机制中对任务的控制采用了优先级抢占 (Preemptive Priority Scheduling)和轮转调度 (Round- 使同样的硬件配置能满足更强的实时性要求,为应用的开发留下更大的余地。
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VxWorks 的任务调度策略以可抢占式调度( Preemptive Priority Scheduling)为基础,辅以时间轮转调度算法( Round-Robin Scheduling)机制。这一调度算法使得 VxWorks 能够及时响应高优先级 的任务。
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Preemptive Priority Based Scheduling 基于优先级的抢占调度
preemptive fixed priority scheduling algorithm 抢占式固定优先级调度算法
preemptive short packets priority scheduling 短包抢先调度
Priority-based preemptive scheduling 基于优先级的抢占式调度
Under preemptive scheduling, the highest priority task executes until it enters the waiting or dead states or a higher priority task comes into existence.
采用抢先调度方式时,具有最高优先级的任务先执行直到它进入等待或僵死状态,或者是有更高优先级的任务产生。
And we analyze three task scheduling schemes based on this task set module, which include hybrid preemptive scheduling, priority-based grouping scheduling and FCFS scheduling.
在该任务模型上分析了二种任务调度机制,包括基于优先级的分组调度机制、混合抢占调度机制、FCFS调度机制。
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