时间片轮转调度，具体做法是调度程序每次把 CPU 分配给就绪队列首进程使用一个时间片。当这个时间片结束时，就强迫一个进程让出处理器，让它排列到就绪队列的尾部，等候下一轮调度。实现这种调度要使用一个间隔时钟。当一个进程开始运行时，就将时间片的值置入间隔时钟内，当发生间隔时钟中断时，就表明该进程连续运行的时间已超过一个规定的时间片。此时，中断处理程序就通知处理器调度进行处理器的切换工作。-The round-robin scheduling, specific practices scheduler assigned to each CPU ready queue process uses a time slice. When the end of this time piece, forcing a process for the processor, arranged to make it to the tail of the ready queue, waiting for the next round of scheduling. To use this scheduling an interval clock. When a process is run, it will be the value of the time slice is placed within the interval clock, when the interval timer interrupt occurs, it indicates that the process for continuous operation time has exceeded a predetermined time slice. In this case, the interrupt handler to notify the processor scheduling switch processor.