| 基于RTPA规范的实时任务调度 |
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| 引用本文： | 李攀峰,周勇,吴易洲.基于RTPA规范的实时任务调度[J].兵工自动化,2005,24(5):103-104. |
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| 作者姓名： | 李攀峰 周勇 吴易洲 |
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| 作者单位： | 中国兵器工业第五八研究所,军品部,四川,绵阳,621000;中国兵器工业第五八研究所,军品部,四川,绵阳,621000;中国兵器工业第五八研究所,军品部,四川,绵阳,621000 |
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| 摘 要： | 基于RTPA规范的实时任务调度器与时间和事件管理器协同可完成处理器上不同任务间的切换,有效解决实时系统中的优先级反转和多任务阻塞及死锁.资源管理器将所有等待资源的任务按照优先级递减排序,只有优先级最高的任务有资格获得资源.SWAI/OS任务调度器通过资源分配器分配系统资源,同时也向系统中引入新的或删除不再需要的任务等.
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| 关 键 词： | 任务调度 实时操作系统 RTPA规范 |
| 文章编号： | 1006-1576（2005）05-0103-02 |
| 收稿时间： | 2005-04-30 |
| 修稿时间： | 2005-06-15 |
Real-time Scheduler Based on RTPA |
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| LI Pan-feng,ZHOU Yong,WU Yi-zhou.Real-time Scheduler Based on RTPA[J].Ordnance Industry Automation,2005,24(5):103-104. |
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| Authors: | LI Pan-feng ZHOU Yong WU Yi-zhou |
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| Affiliation: | Dept. of Military Products, No.58 Institute of China Ordnance Industries, Mianyang 621000, China |
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| Abstract: | The continuous switching between tasks in the processor is completed by task scheduler based on RTPA working in collaboration with the time manager and event manager. The problem of priority inversion and prevents multiple-blocking and deadlock is eliminated this technique from happening. All tasks are placed in queue by the resource manager, sorted according to priorities in descending order and only the first task (with highest priority) is assigned the resource. The system resources is distributed by SWAI/OS task scheduler through resource distributor. |
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| Keywords: | Task scheduling Real-time operating system RTPA |
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