基于嵌入式移动计算系统的内核级回滚恢复检查点间隔优化

2008 IEEE 8th International Conference on Computer and Information Technology Workshops Pub Date : 2008-07-08 DOI:10.1109/CIT.2008.WORKSHOPS.36

Zhan Zhang, Decheng Zuo, Y. Ci, Xiaozong Yang

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引用次数: 9

摘要

由于嵌入式移动计算系统(如可穿戴计算机、pda或传感器节点)的资源有限，降低软件实现容错机制的开销是可靠性设计的关键因素。讨论了两种内核级回滚恢复机制的检查点间隔优化技术。步进检查点算法是根据软件或硬件环境依赖系统的特点，在系统发生故障后不久故障率就会剧烈波动，从而在线调整检查点间隔。检查点大小监视和阈值控制技术通过预测要保存的数据量来调整检查点间隔。这两种技术的结合可以有效地提高嵌入式移动计算机系统的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The Checkpoint Interval Optimization of Kernel-Level Rollback Recovery Based on the Embedded Mobile Computing System

Due to the limited resources of the embedded mobile computing systems, such as wearable computers, PDAs or sensor nodes, reducing the overhead of the software implemented fault tolerance mechanism is a key factor in reliability design. Two checkpoint interval optimization techniques of kernel level rollback recovery mechanism are discussed. Step checkpointing algorithm modulates checkpoint intervals on-line according to the characteristics of software or hardware environment-dependent system that the failure rate fluctuates acutely shortly after the system fails. Checkpoint size monitoring and threshold-control technique adjusts the checkpoint interval by predicting the amount of data to be saved. Combining these two techniques can effectively improve the performance of the embedded mobile computer system.

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2008 IEEE 8th International Conference on Computer and Information Technology Workshops

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