Both threads and processes are really just one thing:"a context of execution"
线程拥有cpu状态,剩下的context从进程中得到的说法是片面的,这只是一种分类方法
do NOT design around the thread/process way of thinking. The kernel should be designed around the COE way of thinking
总而言之就是,进程,线程,协程这些概念的提出都是为了