| 实时双机系统中检查点设置周期的选择 |
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| 引用本文： | 谢宝湘,金士尧,胡华平,刘晓建. 实时双机系统中检查点设置周期的选择[J]. 计算机工程与科学, 2001, 23(1): 90-92 |
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| 作者姓名： | 谢宝湘 金士尧 胡华平 刘晓建 |
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| 作者单位： | 国防科技大学计算机学院, |
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| 摘 要： | 为了保证长运行时间软件的实时性要求，本文针对双机冗余系统，采用检查点设置与卷回恢复的方法提出了一种系统模型，同时为使任务的完成时间最短而给出了如何确定检查点设置周期的方法。文章最后进行了数学分析并给出了模拟结果比较。
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| 关 键 词： | 检查点 卷回恢复 实时双机系统 容错技术 计算机 |
| 文章编号： | 1007-130X(2001)01-0090-03 |
Selection of a Checkpoint Interval in a Real-Time Dual-Computer System |
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| XIE Bao-xiang,JIN Shi-yao,HU Hua-ping,LIU Xiao-jian. Selection of a Checkpoint Interval in a Real-Time Dual-Computer System[J]. Computer Engineering & Science, 2001, 23(1): 90-92 |
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| Authors: | XIE Bao-xiang JIN Shi-yao HU Hua-ping LIU Xiao-jian |
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| Affiliation: | XIE Bao xiang,JIN Shi yao,HU Hua ping,LIU Xiao jian [WT5HZ] |
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| Abstract: | To meet the real time requirements of long running software,this paper adopts the methods of setting checkpoints and rollback to derive a system model based on dual computer redundancy.For such a model,the strategy to select an optimum checkpoint interval which can minimize the completion time of tasks is presented.Finally,the mathematical analysis and the simulation results to support the strategy are given. |
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| Keywords: | real time dual computer fault tolerance checkpoint rollback and recovery |
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