This requires a context switch to the kernel thread to handle the task of moving data to and from disk.
这要求上下文切换到内核线程，以处理将数据移动到磁盘以及从磁盘移出数据的任务。
2
And when it does perform a threadswitch, it tends to do it in the same place whenever you run the program.
并且当它确实执行了线程切换时，每次运行程序时它往往都在同一个位置进行切换。
3
Each processor on the CPU has its own CSA (current save area) pointer that points to the MST that is to be used when a thread or interrupt handler is interrupted or swapped due to context switch.