Consider the following set of jobs to be scheduled for execution on a single CPU system. Job Arrival Time Size (msec) Priority Ji 10 2 (Silver) 1 (Gold) 3 (Bronze) 2 (Silver) 3 (Bronze) 1 (Gold) 2 J3 J4 Js J6 3 10 3 4 12 1 15 4 a) Draw a Gantt chart showing FCFS scheduling for these jobs and find average waiting time. b) Draw a Gantt chart showing (non-preemptive) SJF scheduling and find average waiting time c) Draw a Gantt chart showing non-preemptive PRIORITY scheduling and find average turn-around time.
Consider the following set of jobs to be scheduled for execution on a single CPU system. Job Arrival Time Size (msec) Priority Ji 10 2 (Silver) 1 (Gold) 3 (Bronze) 2 (Silver) 3 (Bronze) 1 (Gold) 2 J3 J4 Js J6 3 10 3 4 12 1 15 4 a) Draw a Gantt chart showing FCFS scheduling for these jobs and find average waiting time. b) Draw a Gantt chart showing (non-preemptive) SJF scheduling and find average waiting time c) Draw a Gantt chart showing non-preemptive PRIORITY scheduling and find average turn-around time.
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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Transcribed Image Text:Consider the following set of jobs to be scheduled for execution on a single CPU system.
Job Arrival Time Size (msec) Priority
2 (Silver)
1 (Gold)
3 (Bronze)
2 (Silver)
3 (Bronze)
1 (Gold)
10
J2
J3
JA
J5
J6
8
3
3
10
4
12
1
15
4
a) Draw a Gantt chart showing FCFS scheduling for these jobs and find average waiting time.
b) Draw a Gantt chart showing (non-preemptive) SJF scheduling and find average waiting time
c) Draw a Gantt chart showing non-preemptive PRIORITY scheduling and find average turn-around
time.
d) Draw a Gantt chart showing preemptive PRIORITY scheduling and find average waiting time.
e) Which of the foregoing scheduling policies provides the lowest waiting time
for this set of jobs? What is the waiting time with this policy?
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