-操作系统精髓与设计原理(第五版)+课后题答案1
CHAPTER 9 UNIPROCESSOR SCHEDULING
Review Questions
9.1 Long-term scheduling: The decision to add to the pool of processes to be
executed. Medium-term scheduling: The decision to add to the number of processes that are partially or fully in main memory. Short-term
scheduling: The decision as to which available process will be executed by the processor
9.3 Turnaround time is the total time that a request spends in the system
(waiting time plus service time. Response time is the elapsed time
between the submission of a request until the response begins to appear as output.
Problems
9.1 Each square represents one time unit; the number in the square refers to
the currently-running process.
FCFS
RR, q = 1 RR, q = 4 SPN SRT HRRN Feedback, q = 1 Feedback, q = 2i