(i) Earliest-Deadline First (EDF) (ii) Rate-Monotonic (RM) A real-time system has three processes, P, Q and R with two instances respectively. Thefollowing table shows the process arrival time, total process execution time, and the deadline ofeach process.ProcessProcesProcessDeadlineArrivalExecution TimeP,520P,2052010Q,1010R,4100R,1004100Illustrate the execution of the three processes with a time diagram based on the following real-timescheduling. (Please indicate CPU idle time if any)

It is an important part of Operating System Allow more than one process to load in executable memory…

Answered: (i) Earliest-Deadline First (EDF) (ii)…

Engineering

Computer Science

(i) Earliest-Deadline First (EDF) (ii) Rate-Monotonic (RM)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

You were given five processes with their arrival time and execution time for each in the table. Process Arrival time Execution time Processes A 0 4 Processes B 2 3 Processes C 3 4 Processes D 5 5 Develop the schedule (time diagram) for the following methods. First-Come-First-Served (FCFS) Round Robin Shortest Process Next (SPN) Assume the length of the time quantum, or slice is 1 (q=1)
QUESTION 3: You were given five processes with their arrival time and execution time for each in the table. Process Arrival time Execution time Processes A 0 4 Processes B 2 3 Processes C 3 4 Processes D 5 5 Develop the schedule (time diagram) for the following methods. First-Come-First-Served (FCFS) Round Robin Shortest Process Next (SPN) Assume the length of the time quantum, or slice is 1 (q=1)
Note: this question is related from operating system subject. Q:By Round Robin (time quantum= 3) show the scheduling order of the processes using a Gantt chart in the following data. Also b) What is the turnaround time for each process? c) What is the waiting time for each process? d) What is the response time for each process? Process Burst Arrival P1 30 0 P2 25 40 P3 20 50 P4 12 75
A real-time system executing four different periodic tasks Ti(p,t) is given, with p and t representing the period and the execution time of the task, respectively. Each task's deadline matches its period p. The system is executing the following set of tasks: S = {T1(10,2), T2(4,1), T3(10,3), T4(7,1)}. Is this real-time system schedulable under Rate-Monotonic (RM) scheduling? Is this real-time system schedulable under Earliest Deadline First (EDF) scheduling? Explain your answers using the concept of overall CPU utilization.
Two-Process Solution. Consider the following codes below. Determine which solution to critical section problem for two-process is violated. The variable ‘i’ refers to the current process and ‘j’ is the other process. shared var boolean P[i] = FALSE P[j] = FALSE repeat while P[i] do no-op; P[i] := TRUE <critical section> P[i] :=FALSE; until false; choices: Undetermined, not enough data presented Progress Bounded waiting Mutual exclusion answer only no need explanation
Consider the following processes:Process Arrival Time Service Time A 0 4 B 1 3 C 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 aboveprocesses execute over time on a system with 2 CPUs. Compute the average turnaroundtime for all processes and the average utilization for each CPU under each of the following schedulers: (a) FCFS with a single Ready Queue. A process gets scheduled once one of the CPUsis 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 processesD, E, and F go to CPU2. (c) HRRN with a single Ready Queue. A process gets scheduled once one of the CPUsis available. When both CPUs are available, we select CPU1.
Assuming that there are 5 processes (P1, P2, P3, P4 and P5) which are processed by a CPU.The processes need 3 resources (A, B and C). The following information shows the current resources allocated to each process and also the maximum resources they required in order to complete their processes. Given that the available resources are 4, 2, 2 respectively. Processes Allocated Resources Maximum Resources Required A B C A B C P1 2 1 2 5 3 2P2 3 2 3 6 5 4P3 1 3 4 6 6 6P4 7 8 8 10 18 16P5 6 7 5…
Consider that we have 3 groups of processes (group 1, group 2 & group 3). Only one process can be executing in its critical section from group 3, provided that no processes are executing in their critical sections form groups 1 and 2. At most 10 processes can be executing in its critical sections from group 2, provided that no processes are executing in their critical sections form groups 1 and 3. An infinite number of processes can be executing in its critical sections from group 1, provided that no processes are executing in their critical sections form groups 2 and 3. You should modify the code for the readers.writers problem. Shared data and semaphores: Code Group 1 Group 2 Group 3
By Round Robin (time quantum= 3) show the scheduling order of the processes using a Gantt chart in the following data. Also b) What is the turnaround time for each process? c) What is the waiting time for each process? d) What is the response time for each process? Process Burst Arrival P1 30 0 P2 25 40 P3 20 50 P4 12 75
In the event of an impasse, it becomes necessary to terminate said processes, thereby leading to the subsequent consequences:
Processes Arrival Time Priority Burst Time P1 0 3 8 P2 1 4 3 P3 3 4 5 P4 4 5 2 P5 5 2 7 P6 6 6 6 P7 10 1 2 calculate the completion time, turnaround time, waiting time, average turnaround time and average waiting time, of the following given processes using priority non-preemptive version scheduling algorithm . also draw the gantt chart.
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,…