Operating Systems Process Creation(2) Parent process creates children processes, which, in turn create other processes, forming a tree of processes. g Resource sharing t Parent and children share all resources A Children share subset of parents resources t Parent and child share no resources g Execution执行 a Parent and children execute concurrently Parent waits until children terminate Gao Haichang, Software School, Xidian UniversityOperating Systems Gao Haichang , Software School, Xidian University 7 Process Creation (2)  Parent process creates children processes, which, in turn create other processes, forming a tree of processes.  Resource sharing  Parent and children share all resources.  Children share subset of parent’s resources.  Parent and child share no resources.  Execution 执行  Parent and children execute concurrently.  Parent waits until children terminate