| 摘要: |
| 文章介绍了作者在过去5年中在微内核技术上所做的工作.给出了3个算法.① 通过将任务调度和线程调度算法相结合的方法，来解决单纯以线程为单位的调度系统的效率和公平性问题；② 一个改进的写时拷贝算法，它结合写时拷贝算法和访问时拷贝算法的优点，来解决写时拷贝算法在I386体系结构上的适应性问题；③ 提出了一个微内核操作系统计时模型，它解决了传统计时算法在微内核系统中计时不准确的问题. |
| 关键词: 微内核，调度，存储管理，计时模型. |
| DOI： |
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| 基金项目:本文研究得到国家“八五”重点科技攻关项目基金和“九五”国防预研项目基金资助. |
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| Some Researches on Operating System Microkernel Technology |
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PAN Qing,ZHANG Xiao-qing
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| Abstract: |
| Some of the research work which the authors have done on microkernel in the last 5 years are described in this paper. Three new algorithms have been proposed. The first algorithm combines task schedule and thread schedule algorithms together to improve the efficiency of the thread schedule system, it also provides a more fairness scheduling algorithm for microkernel operating system. The second algorithm is an enhanced copy－on－write algorithm, it combines copy －on－write and copy－on－reference algorithms together to make it more suitable on I386 architecture. The last algorithm is a new timing algorithm for microkernel operating system, it solves the inaccuracy timing problem which is caused by traditional timing algorithm running under the microkernel architecture. |
| Key words: Microkernel, schedule, virtual memory management, timing model. |
