| Linux抢占式内核的研究与实现 |
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| 引用本文： | 厉海燕,李新明.Linux抢占式内核的研究与实现[J].计算机工程与设计,2005,26(9):2395-2399. |
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| 作者姓名： | 厉海燕 李新明 |
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| 作者单位： | 装备指挥技术学院,北京,101416 |
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| 摘 要： | 随着Linux操作系统的成功应用,尤其是在嵌入式实时应用领域,Linux实时性能的提高成为一个很重要的因素.系统核心的可抢占性是决定系统实时性能的一个重要条件,而Linux的核心是不可抢占的,通过将Linux的内核改造为可抢占式内核,可缩短系统的响应延时,提高Linux的实时性.分析了几种实现抢占式内核的方法,介绍了一种实现Linux可抢占式内核的方法,并对其实现细节进行了详细的说明.
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| 关 键 词： | 抢占 调度 锁 实时 |
| 文章编号： | 1000-7024（2005）09-2395-05 |
| 收稿时间： | 2004-08-02 |
| 修稿时间： | 2004-08-02 |
Research and implementation on preemptive kernel of Linux |
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| LI Hai-yan,LI Xin-ming.Research and implementation on preemptive kernel of Linux[J].Computer Engineering and Design,2005,26(9):2395-2399. |
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| Authors: | LI Hai-yan LI Xin-ming |
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| Affiliation: | Academy of Equipment and Command and Technology, Beijing 101416, China |
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| Abstract: | With the successful application of Linux operating system,especially in embedded real-time system fields,the improvement of Linux real-time performance becomes an important factor.Preemptive kernel is a decisive condition of a system's real-time perform-ance.But the kernel of Linux is not preemptive.Through modification of Linux source codes,preemptive Linux kernel can reduce time delayed of system response,and improve real-time performance of Linux.Several methods to imply preemptive kernel were analyzed A method to implement a preemptive kernel of Linux was discussed and the implementation was explains in detail. |
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| Keywords: | preempt schedule lock real-time |
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