| 基于RTAI的Linux系统实时性研究与改进 |
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| 引用本文： | 赵旭,夏靖波. 基于RTAI的Linux系统实时性研究与改进[J]. 计算机工程, 2010, 36(14): 288-290 |
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| 作者姓名： | 赵旭 夏靖波 |
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| 作者单位： | 空军工程大学电讯工程学院,西安,710077 |
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| 基金项目： | 西安电子科技大学综合业务网理论及关键技术国家重点实验室开放基金 |
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| 摘 要： | 分析现有嵌入式Linux操作系统实时性的不足，借鉴实时应用接口的结构和完全公平调度算法，提出一种内核进程调度策略，将此调度策略编译进操作系统。系统性能测试表明无论该系统处于忙或闲的状态，改进后的系统都较改进前的系统性能优越，尤其是对于复杂度较高的进程，其性能提升效果更加明显。
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| 关 键 词： | 调度器 实时应用接口 完全公平调度 红黑树 Linux内核 |
Research and Improvement of Real-time in Linux-system Based on RTAI |
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| ZHAO Xu,XIA Jing-bo. Research and Improvement of Real-time in Linux-system Based on RTAI[J]. Computer Engineering, 2010, 36(14): 288-290 |
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| Authors: | ZHAO Xu XIA Jing-bo |
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| Affiliation: | (Electronic ＆ Engineering College,Air Force Engineering University,Xi＇an 710077) |
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| Abstract: | This paper analyzes insufficiency of present Linux operating system. Based on the structure of the Real-time Application Interface (RTAI) and Complete Fair Scheduler(CFS), a novel kernel process scheduler tactic is proposed and compiled into the operating system. The system performance test indicates that whether the system is busy or not, the improved system outperforms the previous ones, particularly, the more complicated the progress is, the more evident the performance improvement is. |
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| Keywords: | scheduler Real-time Application Interface(RTAI) Complete Fair Scheduler(CFS) red-black tree Linux kernel |
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