| 嵌入式Linux实时性研究 |
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| 引用本文： | 周保余,孔德刚,赵宏伟,仲明杰.嵌入式Linux实时性研究[J].吉林大学学报(信息科学版),2011,29(4):338-342. |
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| 作者姓名： | 周保余 孔德刚 赵宏伟 仲明杰 |
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| 作者单位： | 1.吉林大学 a.软件学院；b.计算机科学与技术学院,长春 130012;2.长春工程学院 软件职业技术学院,长春 130012 |
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| 基金项目： | 吉林省教育厅科学基金资助项目(2009605) |
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| 摘 要： | 针对Linux 2.6内核,分析了其在进程调度、中断处理、内核锁机制和虚拟内存等方面对实时性能的负面影响,提出一个旨在提高嵌入式Linux实时性能的解决方案.在该方案中包含了一种新的中断线程化方法,并将其在i386平台上实现.开发了专用的测试模块,并使用Linux内核保留的中断号测试中断线程化效果.测试结果表明,该方案...
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| 关 键 词： | 嵌入式Linux 实时 中断线程化 中断模拟 |
Research on Enhancing Embedded Linux's Real-Time Performance |
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| ZHOU Bao-yu,KONG De-gang,ZHAO Hong-wei,ZHONG Ming-jie.Research on Enhancing Embedded Linux's Real-Time Performance[J].Journal of Jilin University:Information Sci Ed,2011,29(4):338-342. |
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| Authors: | ZHOU Bao-yu KONG De-gang ZHAO Hong-wei ZHONG Ming-jie |
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| Institution: | 1a.Software College;1b. College of Computer Science and Technology,Jilin University,Changchun 130012,China;2.School of Software Professional Technology,Changchun Institute of Technology,Changchun 130012,China |
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| Abstract: | The analysis on how the task scheduling policy,interrupts processing procedure,kernel locks and virtual memory mechanism of linux 2.6 influence its real-time performance has been done,and a solution aiming at improving its real-time performance is designed.This solution includes a new way to make interrupts handled as a kernel thread,and has been developed on i386 platform.To test the solution,a special module is designed,which uses the saved interrupt number to emulate software interrupts.The result shows that the solution successfully prevent real-time tasks form disturbing of interrupts,and helps a lot in improving real-time performance. |
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| Keywords: | embedded linux real-time tasked interrupts interrupts emulation |
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