Operating systems homework questionPlease help me with this HOMEWORK question 1. a) For the 5 processes described below, draw a Gannt diagram showing when eachprocess executes under FIFO, SJF, SRT, and Round Robin. For Round Roblin, use atime quantum of 2 units.Processpl p2 p3 p4 p5Arrival time2468Total CPU time 3 65 2FIFO:Shortest Job Algorithm non-pre-emptiveShortest Job Algorithm pre-emptive (Shortest Remaining Time)b) Complete the following table of the TURN-AROUND TIME for each process undereach algorithm, and then compute the AVERAGE TURN-AROUND TIME.P1P2P3P4P5AVERAGEFIFOSJFSRT

CPU scheduling is a crucial aspect of operating systems that manages the execution order of…

1. a) For the 5 processes described below, draw a Gannt diagram showing when each process executes under FIFO, SJF, SRT, and Round Robin. For Round Roblin, use a time quantum of 2 units. Process pl p2 p3 p4 p5 Arrival time 0 2468 Total CPU time 3 6 4 5 2 FIFO: Shortest Job Algorithm non-pre-emptive Shortest Job Algorithm pre-emptive (Shortest Remaining Time) b) Complete the following table of the TURN-AROUND TIME for each process under each algorithm, and then compute the AVERAGE TURN-AROUND TIME. P1 P2 P3 P4 P5 AVERAGE FIFO SJF SRT

1. a) For the 5 processes described below, draw a Gannt diagram showing when each process executes under FIFO, SJF, SRT, and Round Robin. For Round Roblin, use a time quantum of 2 units. Process pl p2 p3 p4 p5 Arrival time 0 2468 Total CPU time 3 6 4 5 2 FIFO: Shortest Job Algorithm non-pre-emptive Shortest Job Algorithm pre-emptive (Shortest Remaining Time) b) Complete the following table of the TURN-AROUND TIME for each process under each algorithm, and then compute the AVERAGE TURN-AROUND TIME. P1 P2 P3 P4 P5 AVERAGE FIFO SJF SRT

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

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Consider four processes with the following start and end times: Process Start Time End Time ABCD 3 5 1 7 6 12 4 9 For each pair of proceses, say whether they run concurrently (Y) or not (N). (a) AB (b) AC (c) AD (d) BC (e) BD (f) CD
Deadlock of two processes 3. We see two processes PO and P1 can be in deadlock caused by two semaphores S and Q like below: Let S and Q be two semaphores initialized to 1 Po wait (S); wait (Q) ; signal (S); signal (Q) ; P₁ wait(0); wait (S); signal (Q) ; signal (S); (a) Explain why this happens, i.e. PO waiting for P1 to release something, while P1 waiting for PO to release another thing. (b) Can this be fixed by changing the order of some instructions of P1? Explain!
The following diagram shows the process_state and other_resources fields of 4 processes in the PCB array. The RCB array shows the state and the waiting list of 4 resources. 439508,3112870 qx3zqy7 Jump to level 1 The ready list RL contains processes 0 then 3. Consider (1), (2) as independent operations. PCB 0 PCB 1 PCB 2 PCB 3 process state running other resources state waiting list *** *** Check free RCB 0 3 Next 440 2 *** blocked *** (1) Process 0 requests resource 2. After the operation: Process 0 is ready Resource 2 is Select V RCB 1 allocated (2) Process 0 requests resource 0. After the operation: Process 0 is Select Resource 0 is Select HY blocked 3 *** **** RCB 2 allocated *** ready *** RCB 3 allocated *** Resource 2's waiting list Select RL contains the processes Ex: 1,2,3 Resource 0's waiting list Select RL contains the processes Ex: 1, 2, 3 2 5 2 >> DDD
Round Robin algorithm is used extensively in systems And it is based on a predetermined of time (time quantum) that's given to each job. depends on the size of time quantum in relation to the average CPU cycle If the quantum is too than most CPU Cycles Algorithm reduces to the FCFS scheme If the quantum is too Amount of context switching slows down the execution of the jobs
5. A concurrent work of two computers is represented by the diagram: write(a,2), read(b,1), + computer 1: + external time write(b,1), read(a.0), computer 2: + Is this execution sequentially consistent? If yes then arrange the operations into a sequence, so that their execution in the order of their occurrence in this sequence, yields the same result as the concurrent execution and the conditions of sequential consistency are fulfilled. The sequence (if it exists):
Correctly arrange them in the order in which they are carried out to handle the interruption of a running user process by assigning a number from 1 through 9 to indicate the precedence order for the following steps.For example, 1 would indicate the first step in the process, 2 would indicate the second in theprocess and so on.
There are three processes namely P0, P1, and P2. Input, output, and the CPU burst time of the processes (in milliseconds) are given in the following table. PO P1 P2 Input CPU burst time 11 4 11 12 15 Output 7 8 5 a) Illustrate the graphical representation of the processes' execution in Time Shared processing (7 ms quantum is given for each operation) b) Calculate the total execution time of the processes
Suppose that a multiprogrammed system has a load of N processes with individual execution times of t1, t2, ...,tN. Answer the following questions: a) How would it be possible that the time to complete the N processes could be as small as: maximum (t1, t2, ...,tN)? b) How would it be possible that the total execution time, T > t1+ t2+ ...+tN? In other words, what would cause the total execution time to exceed the sum of individual process execution times?
Please Implement in C programming Language Given the list of processes, their CPU burst times, arrival times, and priorities implement the Round Robin scheduling algorithm on the processes with preemption. Compute and print the completion Time(CT), Turnaround Time(TAT), and Waiting Time(WT) for each process using C Programming. Waiting time: Processes need to wait in the process queue before execution starts and in execution while they get preempted. Turnaround time: Time elapsed by each process to get completely served. (Difference between submission time and completion time).
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Please Implement in C programming Language Given the list of processes, their CPU burst times, arrival times, and priorities implement the SJF scheduling algorithm on the processes with preemption. Compute and print the completion Time(CT), Turnaround Time(TAT), and Waiting Time(WT) for each process using C Programming. Waiting time: Processes need to wait in the process queue before execution starts and in execution while they get preempted. Turnaround time: Time elapsed by each process to get completely served. (Difference between submission time and completion time). Task 1: SJF Scheduling with preemption You can use the following input as a sample:
In the event of an impasse, it becomes necessary to terminate said processes, thereby leading to the subsequent consequences: