Give the following scheduling algorithms : STRF, SJF, RR(q=6)
Process |
Arrival Time |
Burst Time |
Priority |
P0 |
2 |
15 |
3 |
P1 |
4 |
20 |
2 |
P2 |
0 |
28 |
1 |
P3 |
8 |
14 |
3 |
1. SRTF :
Process | Arrival Time | BurstTime | Completion Time |
P0 | 2 | 17 | |
P1 | 4 | 51 | |
P2 | 0 | 77 | |
P3 | 8 | 31 |
SRTF stands for Shortest Remaining Time First is a preemptive scheduling algorithm where when a process with a less burst time arrives, then the running process is preempted and new arrived process is given a chance to run on CPU.
Let's see how the process execute.
P2 | P0 | P3 | P1 | P2 | |||
0 | 2 | 17 | 31 | 51 - 77 |
This is how the process is scheduled. P2 will be preempted in between.
2. SJF :
If you have any questions comment down and please? upvote thanks
Give the following scheduling algorithms : STRF, SJF, RR(q=6) Process Arrival Time Burst Time Priority P0...
OS CPU Scheduling 1. Given the following processes Process Arrival Time 0 Priority 5 P1 P2 P3 P4 Burst Time 10 5 8 15 2 2 3 2 a) Please demonstrate the SJF and LJF algorithms on the above. (Note: if they mention SJF or any other, make sure u do both the non- preemptive and preemptive) b) What are the differences between them?
Consider the following set of processes, with the length of the CPU burst times given in milliseconds:a. Draw four Gantt charts illustrating the execution of the processes using FCFS, Preemptive SJF, a non-preemptive priority, and a RR (quantum=2) scheduling. (30 pts)Note: for the RR consider that the arriving time is 0 for all processesb. What is the average waiting time of each process for of the above scheduling algorithms? (10 pts)P1 8 2 0 P2 5 36P3 1 1 8...
QUESTION 1 Consider the following set of processes, with the length of the CPU burst time given in milliseconds: Process Burst Time Priority P1 7 5 P2 2 4 P3 11 3 P4 9 1 P5 5 3 The processes are assumed to have arrived in the order P1,P2, P3, P4, P5, all at time 0. a. Draw four Gantt charts that illustrate the execution of these processes using the following scheduling algorithms: FCFS, SJF, nonpreemptive priority (a smaller priority number implies a higher priority), and RR (quantum = 2). b. What...
8. Consider the following 5 processes in the ready queue: Process Burst Priority Arrival time n w P1 P2 w N P3 P P - W WE O P4 N P5 N A O Draw Gantt charts illustrating the execution of these processes for each of the following algorithms: (a) preemptive SJF, (b) RR (with quantum = 1), (C) FCFS, and (d) preemptive priority, and calculate the respective turnaround and waiting times.
V. Round Robin and SJF comparison 6 Process Arrival Time CPU Burst Time P1 0 9 P2 4 4 P3 6 P4 For each of the following algorithms, draw a Gantt chart and calculate the average wait time and turn around time. 1. Round robin with quantum=1 time unit 2. Round-robin with quantum=3 time-units 3. SJF WI preemption (Shortest Remaining Time First), assume quantum=3 4. SJE Wlo preemption 5. ECES
Given the following set of processes with corresponding execution times (in ms), arrival times and priority (1 – highest). For each scheduling algorithm: Construct a table showing which process is active and for how long until all processes are completely serviced (as done in class). Calculate the average waiting time and turnaround time. Process ID Burst (ms) Arrival time P1 9 0 P2 12 0 P3 3 0 P4 30 0 P5 20 0 P6 10 0 First Come First Serve...
Consider the following set of processes, with the length of the CPU-burst time given in milliseconds:Processburst TimePriorityP1103P211P323P414P552For each of the scheduling algorithms, FCFS, Shortest-Job-First (SJF, non-preemptive), Priority (smaller priority number implies higher scheduling priority), and RR (quantum = 1) do the following.Draw a Gantt chart to show how these processes would be scheduled.Give the turnaround time (total time from the first arrival into ready state until CPU-burst is completed) of each process.Give the waiting time (total time spent in the Ready state) of each process.Give...
Q.2] Answer the following questions Process Burst Time Priority P1 3 1 P2 8 3 P3 2 4 P4 4 5 P5 5 1 (21 points) Consider the set of processes shown in the table above, with the length of the CPU-burst time given in milliseconds. The processes are assumed to have arrived in the order P5, P4, P3, P2 , and P1, all approximately at time 0. Draw three Gantt charts illustrating the execution of these processes using SJF,...
Consider the following set of processes, with the length of the CPU-burst time given in milliseconds: Process Burst Time Priority P1 10 3 P2 1 1 P3 2 3 P4 1 4 P5 5 2 The processes are assumed to have arrived in the order P1, P2, P3, P4, P5, all at time 0. a. Draw four Gantt charts illustrating the execution of these processes using FCFS, SJF (SPN), a...
Consider the following set of processes, with the length of the CPU burst given in milliseconds:ProcessBurst TimePriorityP1 54P231P312P472P543The processes are assumed to have arrived in the order P1 , P2 , P3 , P4 , P5 , all at time 0. a. Draw four Gantt charts that illustrate the execution of these processes using the following scheduling algorithms: FCFS, SJF, nonpreemptive priority (a larger priority number implies a higher priority), and RR (quantum = 2). b. What is the turnaround time of each...