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 userstack 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. Statecheck operation of checkpoint preserves the user register context and user data segment of process checkpointed at this time to checkpoint file. Staterestore is opposite to the statecheck. We introduce the user level checkpoint implementation based on minix,and make some optimizing for it in this paper.
出处
《计算机应用》
CSCD
北大核心
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)