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

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4 Author(s)
Zhan Zhang ; Sch. of Comput. Sci. & Technol., Harbin Inst. of Technol., Harbin ; De-cheng Zuo ; Yi-wei Ci ; Xiao-zong Yang

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.

Published in:

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

Date of Conference:

8-11 July 2008