Open Source Cross-platform Load Testing Tool – loadUI

loadUI is a free and open source cross-platform Load Testing solution. With a visual, drag-and-drop interface, it allows you to create, configure and redistribute your Load Tests interactively and in real-time. In a single test environment, loadUI provides complete test coverage and supports all the standard protocols and technologies. And it’s so powerful, it generates scalable, high-volume and real-world load from any number of local and remote computers.

loadUI Features:
 * Test Creation
 * Statistics Workbench
 * Distribution
 * Analysis and Reporting
 * Complete Testing
 * Automation
 * Technology Support   

LoadUI Installation:
Note that you might need to be connected to the Internet during installation and the first time you start loadUI.
Download the LoadUI - here
Once you have downloaded the installer, start it by typing (replace X_Y_Z below by the version number of loadUI)

sudo sh loadUI-1_5_0.sh

After successful installation you can open the LoadUI using command line : loadUI.sh

Testing WebSites using LoadUI:
LoadUIs interactive interface and real-time approach to load testing makes it an ideal tool for testing web pages or entire web sites. This document will give an overview of the possibilities and dig into the possibilities of creating realistic load simulations for asserting your sites performance.

loadUI provides two possibilities of performing web requests to a target web site that needs to be tested:
 * The Web Page Runner component is ideal for quickly testing any number of session-less web pages either in sequence or in parallel
 * The soapUI Runner component is ideal for testing more complex web scenarios where sessions, parameters, etc are important. The actual flow of web pages to be tested is first set up in soapUI (using its Web Testing functionality), the created soapUI TestCase is then run from inside loadUI.