| 基于优先级位图对RTAI实时性的改进 |
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| 引用本文： | 甘玲,刘柄宏. 基于优先级位图对RTAI实时性的改进[J]. 重庆邮电学院学报(自然科学版), 2009, 0(6) |
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| 作者姓名： | 甘玲 刘柄宏 |
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| 作者单位： | 重庆邮电大学计算机科学与技术学院; |
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| 基金项目： | 国家自然科学基金项目(60703010) |
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| 摘 要： | 通过对RTAI部分内核代码的分析,指出RTAI中原有的基于双向链表结构的就绪任务队列存在缺陷,在RTAI中引入优先级位图对RTAI的就绪任务队列进行了改进,实现了一个基于优先级位图的双向循环链表的就绪任务队列结构,从而在原有基础上进一步提高了RTAI的实时性,并通过实验加以验证。
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| 关 键 词： | RTAI 优先级位图 双向循环链表 |
Improvement of RTAI real-time performance based on priority bitmap |
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| GAN Ling,LIU Bing-hong. Improvement of RTAI real-time performance based on priority bitmap[J]. Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition), 2009, 0(6) |
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| Authors: | GAN Ling LIU Bing-hong |
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| Affiliation: | GAN Ling,LIU Bing-hong(College of Computer Science , Technology,Chongqing University of Posts , Telecommunications,Chongqing 400065,P.R.China) |
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| Abstract: | This paper points out that the original ready task queue structure based on doubly linked list in RTAI is not flawless through analyzing the kernel source code of RTAI.The original task ready queue structure was improved by introducing priority bitmap in RTAI.A double circular linked list structure based on priority bitmap in RTAI was implemented to improve the real-time performance of existing RTAI.Finally,the improvement has been verified by experiments. |
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| Keywords: | RTAI priority bitmap double circular linked list |
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