OS Scheduler Application

An Electron desktop application for simulating major operating system scheduling algorithms.

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The app uses EJS templates, and Express. The core app (scheduling algorithms) is written in JavaScript.

An old version of the app uses HTML instead of EJS and Express, but there was a separate HTML page for each algorithm page which were identical for the most part except the titles and some minor changes in the tables so I thought having a new version using EJS and Express would be more convenient.

Application Features

• Simulate the execution of the most well known OS scheduling algorithms, the app contains the following algorithms:
  • First Come First Serve
  • Shortest Job First - Preemptive
  • Shortest Job First - Non Preemptive
  • Priority - Preemptive
  • Priority - Non Preemptive
  • Round Robin
• Real time simulation. No need to refill the process table to add a process like other scheduling simulation applications
• Remove a process and re-simulate with one click
• Input validation

Get The App

Build From Source

Make sure you have Node.js installed then follow the steps below:

1. Fork the repo or download the current branch as zip

2. cd into the project directory and run npm install

3. To package the app, run :

   • npm run package:linux for Linux
   • npm run package:win for Windows
   • npm run package:mac for Mac

   This assumes you're on a x64 architecture, modify the package.json file to package for x32

Technical details

Here's the full list of used libraries and frameworks:

Tool	Use
Electron	Packaging as a desktop application
Express	Rendering EJS views and handling URL query parameters
EJS	Templating HTLM
ApexCharts.js	Charting library
Materialize	CSS Framework
webpack	Bundling helpers, views and the core algorithms into a single JavaScript for each algorithm