Shortest Job First (SJF) CPU Scheduling Algorithm Explained with Numerical Example | OS Tutorial
Shortest Job First (SJF) CPU Scheduling Algorithm Explained with Numerical Example | OS Tutorial
This is the definitive guide to mastering the Shortest Job First (SJF) CPU Scheduling Algorithm in Operating Systems. We walk you through a complete Non-Preemptive SJF Numerical Example, detailing the step-by-step construction of the Gantt Chart and the accurate calculation of Turnaround Time (TAT) and Waiting Time (WT). Crucial for GATE CS and academic excellence.
⏰ Chapter Markers / Timestamps:
0:00 Introduction to SJF Algorithm
0:45 Key Concepts: Non-Preemptive SJF Criteria
1:20 Detailed Numerical Problem Setup (Arrival & Burst Time)
2:05 Constructing the SJF Gantt Chart (Handling Idle Time)
4:10 Understanding the Tie-Breaker Rule (Arrival Time Logic)
6:00 Calculating Completion Time and Turnaround Time
7:15 Final Calculation of Average Waiting Time and Response Time
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