FCFSSJF开始选择调度算法实现FCFS实现SJF计算等待时间计算等待时间输出结果结束 接下来是实现FCFS算法的Python示例代码: AI检测代码解析 deffind_waiting_time_fcfs(processes):waiting_time=[0]*len(processes)foriinrange(1,len(processes)):waiting_time[i]=waiting_time[i-1]+processes[i-1][1]returnwaiting_ti...
/usr/bin/python3.5## Modify the SJF and FCFS algorithm in the topic of dealing with jobs.job_num =5classJob():# 定义作业def__init__(self, arr_time=-1, sev_time=-1, cpt_time=-1, wghted_run_time=-1): self.arr_time = arr_time self.sev_time = sev_time self.cpt_time = cp...
The FCFS, which stands for First Come First Serve Scheduling Algorithm, is a non-preemptive scheduling algorithm, which means that if a process once starts executing in the processor, then it cannot be preempted in between the processing. Thus, the concept of priority and urgency is not ...
Operating System Code in Python 3 pythonfcfsdeadlock-detectiondining-philosophers-problemsjfpriority-schedulingmutex-lockdeadlock-avoidancefirst-come-first-servebanker-algorithmbankers-algorithmshortest-job-firstround-robin-schedulingproducer-consumer-problempeterson-algorithmdining-philosophers-problem-semaphore-solutio...
According to the FCFS scheduling algorithm, the process comes the first CPU will execute that process first. So, here CPU will execute process P1. In this schedule, the average waiting time of the system will also be very high. This is because of the convoy effect or starvation. The other...