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_6d.rr.c
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_6d.rr.c
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#include<stdio.h>
int main(){
int i, limit, total = 0, x, counter = 0, time_quantum;
int wait_time = 0, turnaround_time = 0, arrival_time[10], burst_time[10], temp[10];
float average_wait_time, average_turnaround_time;
printf("\nEnter Total Number of Processes:\t");
scanf("%d", &limit);
x = limit;
for(i = 0; i < limit; i++){
printf("\nEnter Details of Process [%d]\n", i + 1);
printf("Arrival Time:\t");
scanf("%d", &arrival_time[i]);
printf("Burst Time:\t");
scanf("%d", &burst_time[i]);
temp[i] = burst_time[i];
}
printf("\nEnter Time Quantum:\t");
scanf("%d", &time_quantum);
printf("\nProcess ID\t\tBurst Time\t Turnaround Time\t Waiting Time\n");
for(total = 0, i=0; x != 0;){
if(temp[i]<= time_quantum && temp[i] > 0){
total = total + temp[i];
temp[i] = 0;
counter = 1;
}
else if(temp[i]>0){
temp[i] = temp[i] - time_quantum;
total = total + time_quantum;
}
if(temp[i] == 0 && counter==1){
x--;
printf("\nProcess[%d]\t\t%d\t\t %d\t\t\t %d",i+1,burst_time[i],total-arrival_time[i],
total-arrival_time[i]-burst_time[i]);
wait_time = wait_time + total - arrival_time[i] - burst_time[i];
turnaround_time = turnaround_time + total - arrival_time[i];
counter = 0;
}
if(i==limit - 1){
i = 0;
}
else if(arrival_time[i+1] <= total){
i++;
}
else{
i = 0;
}
}
average_wait_time = wait_time* 1.0/limit;
average_turnaround_time = turnaround_time* 1.0/ limit;
printf("\n\nAverage Waiting Time:\t%f", average_wait_time);
printf("\nAvg Turnaround Time:\t%f\n", average_turnaround_time);
return 0;
}