Scheduling Criteria CPU utilization- keep the CPU as busy as possible (CPU利用率一使cPU尽可能的忙碌) Throughput- the number of processes that complete their execution per time unit(吞吐量一单位时间内运行完的进程数 Turnaround time- the interval from submission to completion(周转时间一进程从提交到运行结束的全部时间 Waiting time- amount of time a process has been waiting in the ready queue(等待时间一进程在就绪队列中等待调度的时间 片总和) Response time -amount of time it takes from when a request was submitted until the first response is produced not output( for time-sharing environment)(响应时间一从进 程提出请求到首次被响应[面而不是输出结果]的时间段[在分时系统 环境下]) Applied Operating System Concepts 67 Silberschatz, Galvin, and Gagne @19996.7 Silberschatz, Galvin, and Gagne ©1999 Applied Operating System Concepts Scheduling Criteria • CPU utilization – keep the CPU as busy as possible （CPU利用率 – 使CPU尽可能的忙碌） • Throughput – the number of processes that complete their execution per time unit（吞吐量– 单位时间内运行完的进程数 ） • Turnaround time – the interval from submission to completion （周转时间– 进程从提交到运行结束的全部时间 ） • Waiting time – amount of time a process has been waiting in the ready queue（等待时间 – 进程在就绪队列中等待调度的时间 片总和 ） • Response time – amount of time it takes from when a request was submitted until the first response is produced, not output (for time-sharing environment)（响应时间 – 从进 程提出请求到 首次被响应[而不是输出结果]的时间段[在分时系统 环境下] ）