中文摘要：

为了有效评估移动计算系统检查点迁移处理策略的性能,基于移动计算系统自身所具有的特性,给出了移动计算系统中的进程状态模型,并在此基础上提出了一种移动计算系统检查点迁移处理策略性能评价模型.利用该性能评价模型对当前的3种日志检查点迁移策略进行了仿真实验,结果显示该模型与实际情况相吻合,从而验证了此性能评价模型的有效性.该检查点迁移处理策略性能评价模型可用于确定不同移动计算环境下相对适用的检查点迁移处理策略.

英文摘要：

To effectively evaluate the performance of checkpoint handoff scheme for mobile computing system,a model of process state in the mobile system is presented,and then a performance evaluation model for the checkpoint handoff scheme is proposed,according to the characteristics of mobile computing system.The simulation experiments for three existing logging checkpoint recovery schemes have been implemented by the proposed performance evaluation model.The result shows that the performance evaluation model is consistent with practical cases,which proves its validity.By the proposed model of performance evaluation,the proper checkpoint handoff scheme can be determined for a specific mobile computing environment.