| 基于Linux嵌入式操作系统的研究 |
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| 引用本文： | 李红卫,潘瑜,王树亮,薛小锋.基于Linux嵌入式操作系统的研究[J].江苏技术师范学院学报,2006,12(2):51-55. |
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| 作者姓名： | 李红卫 潘瑜 王树亮 薛小锋 |
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| 作者单位： | 江苏技术师范学院计算机科学与工程学院 江苏常州213001(李红卫，潘瑜，薛小锋)，江苏技术师范学院图书馆 江苏常州213001(王树亮) |
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| 基金项目： | 江苏技术师范学院科研基金资助项目(KYY04001) |
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| 摘 要： | 从Linux内核实时性、实时调度策略以及时钟细粒度定时器三个方面,对Linux嵌入式实时化技术进行了探讨。在内核中插入抢占点或采用双内核系统,改善Linux的实时性能;通过动态优先级提高实时任务的调度性能;通过增加时钟中断频率或采用实时时钟一次性模式,实现时钟细粒度。
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| 关 键 词： | Linux 嵌入式系统 实时性 进程调度 |
| 收稿时间： | 2006-02-21 |
| 修稿时间： | 2006-04-03 |
Research on Embedded Operating System Based Linux |
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| LI Hong-wei, Pan Yu, WANG Shu-liang, Xue Xiao-feng.Research on Embedded Operating System Based Linux[J].Journal of Jiangsu Teachers University of Technology,2006,12(2):51-55. |
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| Authors: | LI Hong-wei Pan Yu WANG Shu-liang Xue Xiao-feng |
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| Institution: | 1.School of Computer Science and Engineering, jiangsu Teachers University of Technology, Changzhou 213001, China; 2.Library, Jiangsu Teachers University of Technology, Changzhou 213001, China |
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| Abstract: | This paper explores the embedded real-time technology of Linux in three aspects of the kernel real-time performance,the real-time scheduling policy and the clock high-resolution timer.The real-time performance is improved by inserting preemptive points or adopting two kernels system.The scheduling performance of real-time tasks is enhanced by the dynamic priority scheduling policy.The clock high resolution is realized by adding the frequency of the timer interrupt or adopting the real-time clock one-shot mode. |
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| Keywords: | Linux embedded system real-time performance process scheduling |
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