Draw a Gantt Chart for the following scheduling policies: 1.  First Come First Served (FCFS)  2. Shortest Remaining Time First (SRTF - preemptive version of Shortest Job First)  Convention: if two jobs have the same remaining time, choose job that arrived earlier first. 3.  Round Robin (RR) scheduling policy with a quantum size of 2 units.

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
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Observe the table (picture) and do the following: 

Draw a Gantt Chart for the following scheduling policies:

1.  First Come First Served (FCFS

2. Shortest Remaining Time First (SRTF - preemptive version of Shortest Job First) 

Convention: if two jobs have the same remaining time, choose job that arrived earlier first.

3.  Round Robin (RR) scheduling policy with a quantum size of 2 units. 

Conventions:

1. If a job finishes before the end of its quantum, finish that quantum and begin a new one immediately.

2. If a job finishes its quantum at the same time as a new job (i.e., a new CPU burst for a job) arrives, place the job that just finished its quantum ahead of the newly arriving job in the job queue.

Job Arrival time CPU burst time I/O wait time
A
4
2
B
с
D
1
3
0
4
4
3
1
5
4
2
Transcribed Image Text:Job Arrival time CPU burst time I/O wait time A 4 2 B с D 1 3 0 4 4 3 1 5 4 2
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