Minix进程检查点机制的实现  

Process Checkpoint Implementation Based on Minix

作　　者：李毅[1] 周明天[2] 

机构地区：[1]重庆邮电学院计算机学院,重庆400065 [2]电子科技大学计算机学院,四川成都610054

出　　处：《计算机应用》2003年第1期13-14,17,共3页journal of Computer Applications

基　　金：重庆市科技基金资助项目(7358);重庆市教委重点项目资助(D2002-28)

摘　　要：通过将进程用户栈和核心上下文数据存入数据段,可把与检查点有关的进程上下文简化为用户级寄存器上下文和用户数据段。检查点机制的状态检查操作就是将进程在该运行时刻的用户级寄存器上下文和用户数据段保存到检查点文件中。状态恢复操作是状态检查的逆操作。文章给出了minix进程检查点机制的核外实现技术,并对该实现技术作了适当的优化。When process is in user status, storing the userstack data and kernel context data of a process to the data segment of the process its own,the process context simply is : user register context and user data segment. Statecheck operation of checkpoint preserves the user register context and user data segment of process checkpointed at this time to checkpoint file. Staterestore is opposite to the statecheck. We introduce the user level checkpoint implementation based on minix,and make some optimizing for it in this paper.

关 键 词：MINIX 进程 检查点机制 操作系统 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]