Draw Gantt chart and calculate average wait time for time quantum 4 using SJF.

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
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Draw Gantt chart and calculate average wait time for time quantum 4 using SJF.

The image displays a list of pairs with labels and corresponding values:

- P1: 30
- P2: 10
- P3: 6
- P4: 12

There are no graphs or diagrams accompanying this data.
Transcribed Image Text:The image displays a list of pairs with labels and corresponding values: - P1: 30 - P2: 10 - P3: 6 - P4: 12 There are no graphs or diagrams accompanying this data.
Expert Solution
Step 1: Intro

It appears you want to schedule processes using the Shortest Job First (SJF) scheduling algorithm and create a Gantt chart while calculating the average waiting time with a time quantum of 4. However, SJF is typically used with non-preemptive scheduling. If you want to use a time quantum, you might be referring to Round Robin (RR) scheduling.

Here's how you can approach creating a Gantt chart and calculating the average waiting time for these processes using a time quantum of 4:

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Why in general they will be same or  less for SJF

Is wait time different when we use time quantum 4 using FIFO?

Which is better and why?                                  

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