中文摘要：

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。

英文摘要：

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.