Part IAssume that the ready queue has just received for processes: P1, P2, P3, P4, in that order. All at time 0. TheCPU execution times for these processes are as follows:Process Execution TimeP1P2P3P4138156Draw the Gantt chart and calculate the metric listed in parentheses for each of the following schedulingalgorithms:1. First Come, First Served (Total Wait Time)2. Shortest Job First (Total Wait Time)3. Round Robin, with a time quantum of 5 ms (Total Wait and Response Times)Part IINow assume that P1 arrives in the ready queue at time 0, P2 arrives at time 4, P3 arrives at time 10, and P4arrives at time 20. The CPU execution times for the processes are the same as in Part I:Process Execution TimeP1P2P3P4P113P28P315P46Draw the Gantt chart and calculate the total wait time for each of the following scheduling algorithms:1. Shortest Job First2. Shortest Remaining Time Next (remember, this is a preemptive algorithm)3. Preemptive priority with the following priorities:Process Priority3412For this system, assume that the highest priority has the lowest number (i.e., 1 is the most important)4. Non-Preemptive priority with the same priorities as above. Be sure to note priority inversion when/if itoccurs. Priority inversion is when a process with a lower priority executes over a process with a higherpriority.

The CPU scheduling algorithm is used to decide which processes will be allocated to the CPU. The…

Part I Assume that the ready queue has just received for processes: P1, P2, P3, P4, in that order. All at time 0. The CPU execution times for these processes are as follows: Process Execution Time P1 P2 P3 P4 13 8 15 6 Draw the Gantt chart and calculate the metric listed in parentheses for each of the following scheduling algorithms: 1. First Come, First Served (Total Wait Time) 2. Shortest Job First (Total Wait Time) 3. Round Robin, with a time quantum of 5 ms (Total Wait and Response Times)

Part I Assume that the ready queue has just received for processes: P1, P2, P3, P4, in that order. All at time 0. The CPU execution times for these processes are as follows: Process Execution Time P1 P2 P3 P4 13 8 15 6 Draw the Gantt chart and calculate the metric listed in parentheses for each of the following scheduling algorithms: 1. First Come, First Served (Total Wait Time) 2. Shortest Job First (Total Wait Time) 3. Round Robin, with a time quantum of 5 ms (Total Wait and Response Times)

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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Question

Part I
Assume that the ready queue has just received for processes: P1, P2, P3, P4, in that order. All at time 0. The
CPU execution times for these processes are as follows:
Process Execution Time
P1
P2
P3
P4
13
8
15
6
Draw the Gantt chart and calculate the metric listed in parentheses for each of the following scheduling
algorithms:
1. First Come, First Served (Total Wait Time)
2. Shortest Job First (Total Wait Time)
3. Round Robin, with a time quantum of 5 ms (Total Wait and Response Times)
Part II
Now assume that P1 arrives in the ready queue at time 0, P2 arrives at time 4, P3 arrives at time 10, and P4
arrives at time 20. The CPU execution times for the processes are the same as in Part I:
Process Execution Time
P1
P2
P3
P4
P1
13
P2
8
P3
15
P4
6
Draw the Gantt chart and calculate the total wait time for each of the following scheduling algorithms:
1. Shortest Job First
2. Shortest Remaining Time Next (remember, this is a preemptive algorithm)
3. Preemptive priority with the following priorities:
Process Priority
3
4
1
2
For this system, assume that the highest priority has the lowest number (i.e., 1 is the most important)
4. Non-Preemptive priority with the same priorities as above. Be sure to note priority inversion when/if it
occurs. Priority inversion is when a process with a lower priority executes over a process with a higher
priority.

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