摘 要：检查点机制是一种典型有效的软件容错技术。在对现有检查点实现技术综合研究的基础上，设计了一个用户指导的多层混合检查点模型uHybcr，并在IA64 Linux系统中予以实现。最后，通过对比测试对引入用户指导机制所带来的性能优化进行了验证。
关键词：多层混合检查点； IA64； 性能优化； 最小可恢复状态集
中图分类号：TP393 文献标志码：A
文章编号：1001-3695(2008)07-2097-03
User-defined hybrid checkpointing and optimization
LIU Yong-peng, WANG Xiao-ping, LI Gen
(School of Computer, National University of Defense Technology, Changsha 410073, China)
Abstract:Checkpoint is a typical and effective technique for fault tolerance. By analysis of current checkpointing technologies, this paper introduced a model of user-defined hybrid checkpoint and implemented it in the IA64 Linux. At last,it proved its optimization by the comparing test.
Key words：hybrid checkpoint; IA64; optimization; min restartable state set
0 引言
检查点（checkpoint）技术是一种典型有效的软件容错机制。（剩余2279字）