Final Project
For this assignment please submit a single zip file. The zip file will contain your code and a README pdf document with instructions on how to run your code. Include screenshots of your program running on five different time quantum in the zip file as well.
Your objective is to create a program that simulates Round Robin CPU scheduling. You could use the linux virtual machine from the first assignment to test your program to make sure it will run.
Program Requirements:
The program you will create is used to generate a schedule of processes. The processes are stored in a plaintext file. The program accepts two parameters. The first parameter is the path of the processes file. The second parameter is the time quantum. (More on that on the next page).
Your simulation should include the following:
Clock
timestamps all events for processes, such as creation time, completion time, etc.
Process Creator
creates processes at arrival time
CPU
runs processes for a time slice (time quantum)
Queue
FIFO ready queue used by both the process creator and CPU
Process Arrival Time
arrival time of new processes into the ready queue
Process Service Time
amount of time required by the processes to complete execution
Time Quantum
time each process can spend in the CPU, before it is removed
Context Switch
number of times a process is switched
Your program should also print out the following performance evaluation criteria:
CPU Utilization
Throughput
Average Waiting Time
Average Turnaround Time
Include a README pdf document as your project report. Your report should explain CPU scheduling and how Round Robin works. Your report should detail your project implementation and how to analyze the program output. You must include the resulting output of your program using five different time quantum on the same process list. You can either use screenshots or simply copy the output into your report. The analysis of the results of the five runtimes should exhibit the performance of the algorithm based on the size of the time quantum and how this size impacts the outcome of the scheduling.
Sample Input:
Your program will be tested with an input file that has a certain format such as a csv (comma space value) format (if applicable to your computing environment) or any other format that resembles a table. The three columns are Process ID, Arrival Time and Burst Time. Each row is a process. The following is an example using a CSV file:
CSV File
pid,arrive,burst
1,0,5
2,1,7
3,0,2
4,2,6
pid
arrive
burst
1
0
5
2
1
7
3
0
2
4
2
6
Program Execution:
Your program accepts two parameters. The first is that path to the processes text file. The second parameter is the time quantum to be used in the simulation. For example if your program was written in java, the following could be how to test it.
$ javac target.java
$ java target processes.csv 2
Suggestions:
•Research the Round Robin CPU scheduling algorithm.
•Understand goals of scheduling:
CPU Utilization
Maximize CPU utilization. Keep the CPU 100% busy.
CPU Throughput
Maximize the number of jobs processed.
Turnaround Time
Minimize the total time to complete processes.
Waiting Time
Minimize the total time processes wait in the ready queue.
Response Time
Minimize the time from when a request is submitted until the first response (not output) is produced.
•Understand the requirements and plan steps involved to meet the requirements.
•Set up the environment for the scheduler.
•Define classes/subclasses used by the scheduler (CPU, clock, process, process-creator, simulator, etc.), FIFO scheduler, and all the parameters involved.
•Define queues (i.e., ready queue/FIFO and waiting queue) used by the scheduler, the data structure, and mechanisms used for each queue to determine when and which queue a process should enter, and when to be removed to resume execution or be terminated.
•Keep track of context-switch time.
•Provide input to your simulator (time quantum, process arrival time, number of process, burst time of each process) process-creator.
•Output the sequence of events and show how the algorithm is executed and the performance of your scheduling algorithm for the same set of processes and their associated burst time, but different time quantum, in terms of the turnaround time, waiting time, CPU utilization, and throughput.
•Empirical evaluation: Full accounting and statistics after the simulation completes. Create processes with different arrival time and burst time. Run the scheduling algorithm on these processes (i.e., the same set of processes), with five different Time Quantum. Create metrics of the results and get the average of these metrics.
•Analyze the result.
Good Luck!
Reviews
There are no reviews yet.