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Analysis of CPU Scheduling Strategies: FCFS, Round Robin, and STCF Performance Metrics

This document explores two CPU scheduling scenarios, examining the performance of First-Come-First-Served (FCFS), Round Robin, and Shortest Time to Completion First (STCF) scheduling algorithms. In Scenario #1, the average waiting time for FCFS is 101.3 ms, while Round Robin yields 36.7 ms. Scenario #2 shows an average of 20 ms for FCFS and 29 ms for Round Robin. The analysis presents critical insights into algorithm efficiency, response times, and overall CPU utilization, aimed at enhancing understanding in CPU scheduling dynamics for CS 140 coursework.

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Analysis of CPU Scheduling Strategies: FCFS, Round Robin, and STCF Performance Metrics

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  1. Scenario #1 Ready Queue C2ms B1ms A100ms FCFS Avg:101.3 A B C time 100 101 103 Round Robin Avg:36.7 A B C A C A time 2 5 103 CS 140 Lecture Notes: CPU Scheduling

  2. Scenario #2 Ready Queue C10ms B10ms A10ms FCFS Avg:20 A B C time 10 20 30 Round Robin ... Avg:29 A B C A B C A B C A B C time 28 29 30 CS 140 Lecture Notes: CPU Scheduling

  3. Scenario #1 Ready Queue C2ms B1ms A100ms FCFS Avg:101.3 A B C time 100 101 103 Round Robin Avg:36.7 A B C A C A time 2 5 103 STCF Avg:35.7 B C A 1 3 103 CS 140 Lecture Notes: CPU Scheduling

  4. Scenario #2 Ready Queue C10ms B10ms A10ms FCFS Avg:20 A B C time 10 20 30 Round Robin ... Avg:29 A B C A B C A B C A B C time 28 29 30 STCF Avg:20 A B C time 10 20 30 CS 140 Lecture Notes: CPU Scheduling

  5. CS 140 Lecture Notes: CPU Scheduling

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