Contoh Program Penjadwalan FIFO

 Video 

Contoh Penjadwalan FIFO (First In First Out) 

Menggunakan Phyton 

kode Program :

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# FIFO 

# Python3 program for implementation 

# of FCFS scheduling 

# Function to find the waiting 

# time for all processes 

def findWaitingTime(processes, n, 

bt, wt): 

# waiting time for 

# first process is 0 

wt[0] = 0

# calculating waiting time 

for i in range(1, n ): 

wt[i] = bt[i - 1] + wt[i - 1] 

# Function to calculate turn 

# around time 

def findTurnAroundTime(processes, n, 

bt, wt, tat): 

# calculating turnaround 

# time by adding bt[i] + wt[i] 

for i in range(n): 

tat[i] = bt[i] + wt[i] 

# Function to calculate 

# average time 

def findavgTime( processes, n, bt): 

wt = [0] * n 

tat = [0] * n 

total_wt = 0

total_tat = 0

print ("Contoh  First Come First Serve ")

print ("Waiting Time = Turn Around Time - Burst Time ")

    

# Function to find waiting 

# time of all processes 

findWaitingTime(processes, n, bt, wt) 

# Function to find turn around 

# time for all processes 

findTurnAroundTime(processes, n, 

bt, wt, tat) 

# Display processes along 

# with all details 

print( "Processes Burst time " +

" Waiting time " +

" Turn around time") 

# Calculate total waiting time 

# and total turn around time 

for i in range(n): 

total_wt = total_wt + wt[i] 

total_tat = total_tat + tat[i] 

print(" " + str(i + 1) + "\t\t" +

str(bt[i]) + "\t " +

str(wt[i]) + "\t\t " +

str(tat[i])) 

print( "Average waiting time = "+

str(total_wt / n)) 

print("Average turn around time = "+

str(total_tat / n)) 

# Driver code 

if __name__ =="__main__": 

# process id's 

processes = [ 1, 2, 3] 

n = len(processes) 

# Burst time of all processes 

burst_time = [10, 5, 8] 

findavgTime(processes, n, burst_time) 

# This code is contributed 

# by ChitraNayal 

#modified by andrew @2020

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