MLFQ Visualization

[Paper]

An interactive visualization tool for teaching operating systems students the Multilevel feeback queue scheduling algorithm

Build instructions

Prerequisites

• Nodejs 7.x.x or higher (https://nodejs.org/en/download/current/)
• npm (should come with node)
• webpack: npm install -g webpack (version doesn't matter) (sudo or admin privledges required)
• Windows or Linux (should work on OSX, but we haven't tested)

Install dependencies by running

$ npm install

in the mlfq-viz directory

Bundling script, css, and html

To create a build, run the following command in the mlfq-viz folder:

webpack

This will bundle and transpile resources outputing them in the dist folder. To allow webpack to watch source files and continuously rebuild each time a change is made, add a -w flag after the webpack command: webpack -w

Running a simple webserver and testing

mlfq-viz does not rely on any backend logic, however it is handy to have an HTTP server running to serve files in the dist folder.

Running node mlfq-viz (or node . if inside the repo folder) or npm start will create a webserver

The webserver binds to the port specified by the PORT environment variable.

Environment variables can also by specified by creating a .env file in the mlfq-viz directory:

• create a file called .env
• in the file specify a port like this PORT=3000

In your browser, navigate to http://localhost:3000 to run the application (or http://127.0.0.1:3000)