Consider the following processes: Process Arrival Time Service Time A 0 4 B 1 3 с 2 3 D 2 2 E 3 1 F 5 3 Show (draw the schedule, x-axis is time, and one row for each CPU) how the above processes execute over time on a system with 2 CPUs. Compute the average turnaround time for all processes and the average utilization for each CPU under each of the following schedulers:
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(a) FCFS with a single Ready Queue. A process gets scheduled once one of the CPUs
is available. When both CPUs are available, we select CPU1.
(b) FCFS with a Ready Queue per CPU. Processes A, B, and C go to CPU1 and processes
D, E, and F go to CPU2.
(c) HRRN with a single Ready Queue. A process gets scheduled once one of the CPUs
is available. When both CPUs are available, we select CPU1.
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- An operating system uses the banker’s algorithm for deadlock avoidance when managing the allocation of three resource types X, Y and Z to three processes P0, P1 and P2. The table given below presents the current system state. Here, the Allocation matrix shows the current number of resources of each type allocated to each process and the Max matrix shows the maximum number of resources of each type required by each process during its execution Allocation Max X Y Z X Y Z P0 0 0 1 8 4 3 P1 3 2 0 6 2 0 P2 2 1 1 3 3 3 There are 3 units of type X, 2 units of type Y and 2 units of type Z still available. The system is currently in safe state. Consider the following independent requests for additional resources in the current state- REQ1: P0 requests 0 units of X, 0 units of Y and 2 units of Z REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z Write a program to check whether: Only REQ1 can be permitted Only REQ2 can be permitted…An operating system uses the banker's algorithm for deadlock avoidance when managing the allocation of three resource types X, Y and Z to three processes P0, P1 and P2. The table given below presents the current system state. Here, the Allocation matrix shows the current number of resources of each type allocated to each process and the Max matrix shows the maximum number of resources of each type required by each process during its execution Allocation Маx Y Y PO 8 4 3 P1 3 2 6 2 P2 2 1 3 3 3 There are 3 units of type X, 2 units of type Y and 2 units of type Z still available. The system is currently in safe state. Consider the following independent requests for additional resources in the current state- REQ1: P0 requests 0 units of X, 0 units of Y and 2 units of Z REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z Write a program to check whether: A. Only REQ1 can be permitted B. Only REQ2 can be permitted C. Both REQ1 and REQ2 can be permitted D. Neither REQ1 nor REQ2 can…An operating system uses the banker's algorithm for deadlock avoidance when managing the allocation of three resource types X, Y and Z to three processes P0O, P1 and P2. The table given below presents the current system state. Here, the Allocation matrix shows the current number of resources of each type allocated to each process and the Max matrix shows the maximum number of resources of each type required by each process during its execution Allocation Max Y X Y PO 8 4 3 P1 3 6 P2 2 1 1 3 3 3 There are 3 units of type X, 2 units of type Y and 2 units of type Z still available. The system is currently in safe state. Consider the following independent requests for additional resources in the current state- REQ1: PO requests 0 units of X, 0 units of Y and 2 units of Z REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z Write a program to check whether: A. Only REQ1 can be permitted B. Only REQ2 can be permitted C. Both REQ1 and REQ2 can be permitted D. Neither REQ1 nor REQ2…
- An operating system uses the banker's algorithm for deadlock avoidance when managing the allocation of three resource types X, Y and Z to three processes P0, P1 and P2. The table given below presents the current system state. Here, the Allocation matrix shows the current number of resources of each type allocated to each process and the Max matrix shows the maximum number of resources of each type required by each process during its execution Allocation Маx X Y X Y PO 1 8 3 P1 3 2 6 2 P2 1 3 3 3 There are 3 units of type X, 2 units of type Y and 2 units of type Z still available. The system is currently in safe state. Consider the following independent requests for additional resources in the current state- REQ1: PO requests 0 units of X, 0 units of Y and 2 units of Z REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z Write a program to check whether: Only REQ1 can be permitted Only REQ2 can be permitted Both REQ1 and REQ2 can be permitted Neither REQ1 nor REQ2 can be…Let the processes P1, P2, P3, and P4 be given. They arrive in the system at the same time in this order. The processes have the following service times (in time units): P2 17 Process Service time (CPU burst) P1 53 P3 68 P4 24 For the scheduling method "Shortest Job First" (SJF), specify the execution order of the processes, the average execution time (average turnaround time) and the average waiting time over all processes. You must show your calculations. You will not have to draw Gantt charts.Direction: Draw a Gantt chart showing the execution of CPU for the following processes implementing Round robin (RR) as indicated below. Also, compute the turnaround times (TAT) and waiting times (WT) of all processes using this scheduling algorithm. The quantum time (QT) is set to 6. Question 1 10 pts Write your answers on the spaces provided. Process Burst Time (BT) Arrival time (AT) RR TAT RR WT P1 15 P2 10 5 P3 P4 3 10 P5 5 20
- An operating system uses the banker’s algorithm for deadlock avoidance when managing the allocation of three resource types X, Y and Z to three processes P0, P1 and P2. The table given below presents the current system state. Here, the Allocation matrix shows the current number of resources of each type allocated to each process and the Max matrix shows the maximum number of resources of each type required by each process during its execution There are 3 units of type X, 2 units of type Y and 2 units of type Z still available. The system is currently in safe state. Consider the following independent requests for additional resources in the current state- REQ1: P0 requests 0 units of X, 0 units of Y and 2 units of Z REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z Write a program to check whether: Only REQ1 can be permitted Only REQ2 can be permitted Both REQ1 and REQ2 can be permitted Neither REQ1 nor REQ2 can be permittedThe following table shows execution time fo set of processes. all processes arrived in numerical order at time 0 .(ie. P1 arrived before P2 at time zero). PID CPU time P1 2 P2 6 P3 1 P4 4 P5 3 the turnaround time for process P4 using RR(q=1) schedule is 7 or 14 or 9 or 3 or 4Obtain the average waiting time, and the turnaround time, including CPU Utilization and throughput, and draw the chart for the following set of processes using Non-P SJF, and SRTF. Process Burst Time Arrival Time A 10 0 B 6 5 C 7 7 D 3 5 E 1 3
- Let the processes P1, P2, P3, and P4 be given. They arrive in the system at the same time in this order. The processes have the following service times (in time units): Process P1 P2 P3 P4 Service time (CPU burst) 53 17 68 24 For the scheduling method "Round Robin" (RR), specify the average execution time (average turnaround time) and the number of context switches. The time quantum q is set to 20 time units. You must show your calculations. You will not have to draw Gantt charts. Note: For RR, processes execute in order of their ID (i.e., P1-P2-P3-P4).Consider the following 5 processes which are labelled as A, B, C, D and E. Process Arrival Time CPU Cycle PriorityA 0 5 3B 1 2 2C 4 1 5D 5 4 1E 5 2 4 List of processes You are required to draw a timeline Gantt Chart for each of the following CPU schedulingalgorithms. Calculate the average turnaround time and average waiting time for each of thescheduling algorithm respectively.(Note: Assume that larger priority number implies a higher priority) (i) Shortest Remaining Time First (SRTF), Round Robin (assume that time quantum in 3 time slices) and…Let the processes P1, P2, P3, P4, and P5 be given. They arrive in the system at the same time in this order. The processes have the attached service times (in time units) and priorities. For each of the scheduling methods (First Come, first served (FIFO), Shortest Job First, Round Robin, and Priority Scheduling), specify the execution order of the processes and the average execution time (average turnaround time) for all processes. First, determine and state the execution times of the individual processes and then calculate the average value. Note: • For Shortest Job First, If the required service time (CPU time) is the same for two or more processes, use First Come, first served to resolve the conflict. • For Round Robin, the time quantum q = one time unit. • For Priority Scheduling, low integer priority values signify high priorities, with O being the highest possible priority. If multiple processes have the same priority, use First Come, first served to resolve the conflict. Also,…