• Number of processes
• Round Robin Time Quantum
• Context switching

For each process, the user needs to provide the following parameters:

• Process Name
• Process Color (Graphical Representation)
• Process Arrival Time
• Process Burst Time
• Process Priority Number

Program Output

For each scheduler, the program provides the following output:

• Processes execution order
• Waiting Time for each process
• Turnaround Time for each process
• Average Waiting Time
• Average Turnaround Time
• History of all quantum time updates for each process (AGAT Scheduling)
• History of all AGAT factor updates for each process (AGAT Scheduling)

Getting Started

To run the CPU Scheduling Simulator, follow these steps:

1. Clone the repository from this command:

git clone https://github.com/KhaledAshrafH/CPU-Scheduler-Simulator

2. Compile and build the Java program using your preferred IDE or command-line tools.
3. Run the compiled program.
4. Enter the required inputs, such as the number of processes, scheduling parameters, and process details.
5. Once all inputs are provided, the simulation will start, and the output will be displayed on the GUI.

Contributing

We welcome contributions to the CPU Scheduling Simulator project. If you find any bugs, issues, or have suggestions for improvement, please open an issue on the GitHub repository.

If you would like to contribute code to the project, please follow these steps:

1. Fork the repository.
2. Create a new branch for your feature or bug fix.
3. Make the necessary changes in your branch.
4. Test your changes thoroughly.
5. Commit and push your changes to your forked repository.
6. Submit a pull request to the main repository, explaining your changes and the problem they solve.

Testing

The CPU Scheduling Simulator includes a testing section toensure the correctness and functionality of the implemented scheduling algorithms. The following sample test case provides an example of how the program can be tested:

Sample Test Case

Input:

- Number of processes: 4
- Round Robin Time Quantum: 4
- Context switching: 2



For each process:
- Process Name: P1
- Process Color: Red
- Process Arrival Time: 0
- Process Burst Time: 8
- Process Priority Number: 3

- Process Name: P2
- Process Color: Blue
- Process Arrival Time: 2
- Process Burst Time: 4
- Process Priority Number: 1

- Process Name: P3
- Process Color: Green
- Process Arrival Time: 4
- Process Burst Time: 6
- Process Priority Number: 2

- Process Name: P4
- Process Color: Yellow
- Process Arrival Time: 6
- Process Burst Time: 2
- Process Priority Number: 4

Output:

Non-Preemptive Priority Scheduling with context switching:

- Processes execution order: P2 -> P3 -> P1 -> P4
- Waiting Time for each process: P2: 0, P3: 4, P1: 10, P4: 18
- Turnaround Time for each process: P2: 4, P3: 10, P1: 18, P4: 20
- Average Waiting Time: 8
- Average Turnaround Time: 13

Non-Preemptive Shortest Job First (SJF) with context switching:

- Processes execution order: P1 -> P2 -> P3 -> P4
- Waiting Time for each process: P1: 0, P2: 8, P3: 12, P4: 18
- Turnaround Time for each process: P1: 8, P2: 12, P3: 18, P4: 20
- Average Waiting Time: 9.5
- Average Turnaround Time: 14.5

Shortest-Remaining Time First (SRTF) Scheduling with context switching:

- Processes execution order: P2 -> P3 -> P4 -> P1
- Waiting Time for each process: P2: 0, P3: 2, P4: 8, P1: 16
- Turnaround Time for each process: P2: 4, P3: 8, P4: 10, P1: 24
- Average Waiting Time: 6.5
- Average Turnaround Time: 11.5

AGAT Scheduling:

- Processes execution order: P2 -> P3 -> P4 -> P1
- Waiting Time for each process: P2: 0, P3: 4, P4: 8, P1: 14
- Turnaround Time for each process: P2: 4, P3: 10, P4: 10, P1: 22
- Average Waiting Time: 6.5
- Average Turnaround Time: 11.5
- History of all quantum time updates for each process:
  - P2: [4, 6, 8]
  - P3: [4, 6, 6]
  - P4: [4, 4, 4]
  - P1: [4, 2, 0]
- History of all AGAT factor updates for each process:
  - P2: [6, 6, 6]
  - P3: [5, 5, 5]
  - P4: [4, 4, 4]
  - P1: [7, 7, 7]

License

The CPU Scheduling Simulator is licensed under the MIT License. See the LICENSE file for more details.