Suppose that the following processes arrive for execution at the times indicated. Eachprocess has the shown priorities and will run for the amount of time listed (all times are inms)ProcessArrival TimeBurst TimePriority QueueP1153P2203P32020P425102P53052P635151To schedule the execution of these process, a preemptive multi-level queue scheduler isdesigned to apply the following policy at each decision instant (namely whenever a newprocess arrives and whenever a burst completes execution):• Serve the process at the highest priority queue first• If two processes are in the same queue:. If they have different remaining time, follow the SRTF policyo If they have same remining time, follow a RR policy (slice time = 2 ms)Given the above:1. Show the scheduling order of the bursts using a Gantt chart.

In priority scheduling, we schedule processes based on given priority. The processes with the…

Answered: Suppose that the following processes…

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

Suppose that the following processes arrive for execution at the time given below. Each process will run for the amount of time listed. Calculate average turnaround and average waiting time for these processes under Shortest remaining time first (SRTF)(preemptive) scheduling AlgorithmHints: turnaround time: The interval from the time of arrival of a process to the time of completionWaiting time: The sum of the periods spent waiting by a process in the ready queue
Subject: Operating Systems
In Round Robin scheduling, when three processes have to enter the ready-queue at the same instant, if one process (A) has just finished 1/o, the other (B) has been pre-empted from CPU due to expiration of its time quantum and the third (C) has just started, which one will be inserted last (i.e. with lowest priority)? O The process that has just finished I/O. O One of the three will be randomly selected. O The process that has been pre-empted from CPU due to expiration of its time quantum. O The process that has just started.
QUESTION 25 The process invoking the wait operation is : O suspended until another process invokes the signal operation O waiting for another process to complete before it can itself call the signal operation stopped until the next process in the queue finishes execution none of the mentioned QUESTION 26 A situation where a low priority processes may never execute known as: Deadlock Aging Starvation O Segmentation QUESTION 27 It provides solution to a mutual exclusion using wait and signal. Test and Set Compare and Swap Semaphore O Monitors QUESTION 28 Mutual exclusion implies that : O if a process is executing in its critical section, then other processes must be executing in their critical sections if a process is executing in its critical section, then no other process must be executing in their critical sections if a process is executing in its critical section, then all the resources of the system must be blocked until it finishes execution none of the mentioned
Consider a system implementing multilevel queue scheduling. What strategy can a computer user employ to maximize the amount of CPU time allocated to the user's process?
Q10 In symmetric multiprocessor scheduling using private queues, when the scheduler running on a processor seeks to change its workload because it has no tasks to run, it performs a specific type of action called a Enter your answer here Q11 Consider the following pseudo-code implementation of a semaphore wait operation. void wait() { disable interrupts; sem value = sem value- 1; if ( sem value < 0) { block the calling process, adding it to sem_queue; schedule a process from the ready queue; enable interrupts; Is this code free of race conditions on a SMP? O Yes O No
Asap
Q.4: Design a multilevel queue that satisfies the following requirements: a) uses time quantum that equals 10 to complete short burst time (10); i.e., use aging technique. Discuss how your design works through an example you suggest?
Write ASAP-Algorithm for unconstrained scheduling.
Given the following processes that arrived on the system as indicated in the table. The table also mention the burst time and priority of each one. Process Arrival time Burst time Priority P1 12 3 P2 7 1 P3 2 2 How the system will allocate the CPU based on Round Robin with time quantum equal to 3– suppose that all processes arrived at time 0. Processes are selected to enter the queue according to priority. So, instead of processes entering the queue in the order P1, P2 and P3. They will enter according to their priority from highest to Lowest. So, they will enter the queue in the order P2, P3, P1. Afterwards, you execute the Round Robins algorithm and draw the Gantt chart.
First_Come_First_Serve Sample Code void calcAvg (int burst_time[4], int waiting_time[4], int turnaround_time[4]) { int i, j; int avgwait=0; int avgTurn=e; void fcfs(int burst_time[4]) int waiting_time[4]; int turnaround_time[4]; int i,j; printf("\nProcess\t\tBurst Time\tWaiting Time\tTurnaround Time"); for (i=@; i<4; i++) waiting_time[@]=e; //calculating waiting time for (i=1; i<4; i++) avgWait += waiting_time[i]; avgTurn += turnaround_time[i]; waiting_time[i]=e; for (j=0; j
Consider a system implementing multilevel queue scheduling. What strategy can a computer user employ to maximize the amount of CPU time allocated to the user's process?

SEE MORE QUESTIONS

Recommended textbooks for you

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

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

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

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

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

C How to Program (8th Edition)

Computer Science

ISBN:

9780133976892

Author:

Paul J. Deitel, Harvey Deitel

Publisher:

PEARSON

Database Systems: Design, Implementation, & Manag…

Computer Science

ISBN:

9781337627900

Author:

Carlos Coronel, Steven Morris

Publisher:

Cengage Learning

Programmable Logic Controllers

Computer Science

ISBN:

9780073373843

Author:

Frank D. Petruzella

Publisher:

McGraw-Hill Education

SEE MORE TEXTBOOKS