public static void cpuidle(MLFQ_Queue queue1)//Handles CPU Idle incrementing Processes in I/O Burst counters
{
if (processesinio.Count != 0)
{
int n = 0;
while (processesinio.ElementAt(n).iocounter < processesinio.ElementAt(n).ioburst)
{
cpu_idle++;
totaltime++;
processesinio.ElementAt(n).iocounter++;
if (n == processesinio.Count - 1)
{
n = 0;
}
else
{
n++;
}
}
queue1.Enqueue(processesinio.ElementAt(n));
processesinio.RemoveAt(n);
}
}
static void Main(string[] args)
{
Process p1 = new Process("P1", new List <int> {
4, 24, 5, 73, 3, 31, 5, 27, 4, 33, 6, 43, 4, 64, 5, 19, 2
});
Process p2 = new Process("P2", new List <int> {
18, 31, 19, 35, 11, 42, 18, 43, 19, 47, 18, 43, 17, 51, 19, 32, 10
});
Process p3 = new Process("P3", new List <int> {
6, 18, 4, 21, 7, 19, 4, 16, 5, 29, 7, 21, 8, 22, 6, 24, 5
});
Process p4 = new Process("P4", new List <int> {
17, 42, 19, 55, 20, 54, 17, 52, 15, 67, 12, 72, 15, 66, 14
});
Process p5 = new Process("P5", new List <int> {
5, 81, 4, 82, 5, 71, 3, 61, 5, 62, 4, 51, 3, 77, 4, 61, 3, 42, 5
});
Process p6 = new Process("P6", new List <int> {
10, 35, 12, 41, 14, 33, 11, 32, 15, 41, 13, 29, 11
});
Process p7 = new Process("P7", new List <int> {
21, 51, 23, 53, 24, 61, 22, 31, 21, 43, 20
});
Process p8 = new Process("P8", new List <int> {
11, 52, 14, 42, 15, 31, 17, 21, 16, 43, 12, 31, 13, 32, 15
});
MLFQ_Queue queue1 = new MLFQ_Queue(1);
MLFQ_Queue queue2 = new MLFQ_Queue(2);
MLFQ_Queue queue3 = new MLFQ_Queue(3);
//Initialize queue references to each other and set lower priority queue references
queue1.queue1 = queue1;
queue1.queue2 = queue2;
queue1.queue3 = queue3;
queue1.lowerpriority = queue2;
queue2.queue1 = queue1;
queue2.queue2 = queue2;
queue2.queue3 = queue3;
queue2.lowerpriority = queue3;
queue3.queue1 = queue1;
queue3.queue2 = queue2;
queue3.queue3 = queue3;
queue3.lowerpriority = null;
//Add all processes to queue1
queue1.Enqueue(p1);
queue1.Enqueue(p2);
queue1.Enqueue(p3);
queue1.Enqueue(p4);
queue1.Enqueue(p5);
queue1.Enqueue(p6);
queue1.Enqueue(p7);
queue1.Enqueue(p8);
processesinio = new List <Process>();
bool finished = false;
while (finished == false)
{
executequeue1(queue1); //Execute the Processes in queue1 using Round Robin with TQ 6
executequeue2(queue2); //Execute the Processes in queue2 using Round Robin with TQ 11
executequeue3(queue3); //Execute the Processes in queue3 using FCFS
if (queue1.Count == 0 && queue2.Count == 0 && queue3.Count == 0 && numprocesscomplete != 8 && processesinio.Count != 0) //Execute if CPU is idle
{
cpuidle(queue1);
}
if (queue1.Count == 0 && queue2.Count == 0 && queue3.Count == 0 && numprocesscomplete != 8 && processesinio.Count == 0)//Condition if all processes have completed
{
printresults(p1, p2, p3, p4, p5, p6, p7, p8);
finished = true;
}
}
}
