Performance Testing

 Performance Testing is a Non-Functional testing performed to evaluate application performance under some load and stress condition. It is generally measures in terms of speed, scalability & stability for the user activity.
Speed: Determines whether the application responds quickly.
Scalability: Determines maximum load the software application can handle.
Stability: Determines if the application is stable under varying loads. There are different types of performance testing.


 The tools available in market?
 Load Runner - HP
RPT [Rational Perform Testing] - IBM
J Meter - Open Source
 Neo Load - Neotys
Open STA - Open Source
 Oats - Oracle
 VSTS - Micro Soft
 SPT - Borland
SOASTA - Open Source
Web Load - Open Source

 Why LOAD RUNNER????? 

 Introduction: One of the best automated performance tool. It uses ANSI C as the default programming language and other languages like JAVA & VB.
 Advantages:
1. It supports all types of protocols (HTTP, FTP and SMTP).
2. Easy to analyze the results and generating scripts. Load Runner was invented by Mercury, and acquired by Hewlett – Packard Organization.

Why JMeter???

JMeter is an software that can be used to execute performance testing, load testingand functional testingof your web applications. JMeter can also simulate a heavy load on a server by creating tons of virtual concurrent users to web server.

JMeter is an open source application. This means that you can download JMeter’s source code to analyze and modify it if you want.

Stefano Mazzocchi of the Apache Software Foundation first designed it. He is now a software engineer at Google. Nowadays, JMeter has become one of the most popular testing tools in the world, beside Selenium and Load Runner.