| 一种基于Linux操作系统下时钟系统的改进机制 |
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| 引用本文： | 唐红梅 郑刚. 一种基于Linux操作系统下时钟系统的改进机制[J]. 微机发展, 2007, 17(2): 85-88 |
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| 作者姓名： | 唐红梅 郑刚 |
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| 作者单位： | 安徽工程科技学院计算机中心 安徽芜湖241000 |
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| 基金项目： | 安徽省高等院校教学研究项目(2005262) |
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| 摘 要： | 随着Linux操作系统的成功,改进Linux的设计和性能,使其应用于实时领域受到了越来越多人的关注。考虑到Linux目前的时钟粒度仍然粗糙,它将直接影响到整个内核的实时性能,文中提出了一种基于Linux操作系统下时钟系统的改进机制,找出修改时钟系统提高实时性的具体方法。实验结果显示,所作改进以不大的代价有效地提高了Linux的实时性能。
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| 关 键 词： | Linux 时钟系统 定时器队列 APIC |
| 文章编号： | 1673-629X(2007)02-0085-04 |
| 修稿时间： | 2006-04-13 |
An Improvement Mechanism of Timer System Based on Linux Operation System |
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| TANG Hong-mei,ZHENG Gang. An Improvement Mechanism of Timer System Based on Linux Operation System[J]. Microcomputer Development, 2007, 17(2): 85-88 |
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| Authors: | TANG Hong-mei ZHENG Gang |
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| Abstract: | Along with the success of Linux,how to improve Linux performance and to satisfy real-time requirement appeales more and more intension of developers.Because Linux timer granularity is granulated,it can affect real-time capability of entire kernel immediately.In this paper,put forward the improvement mechanism of timer system based on Linux operation system,find out the method of modifying timer system and enhancing real-time capability.Experiment result shows it is effective to improve Linux real-time capability by lower cost. |
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| Keywords: | Linux timer system timer alignment APIC |
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