What is Performance Testing? Difference Between Performance Testing, Load Testing and Stress Testing – With Examples

Hi Readers! In the testing world, many times we come across the terms like performance testing, load testing, and stress testing. These three terms are often misunderstood and interpreted as same concepts. However, there is a significant difference between these three testing types and it is important for a tester to understand the same.

In this article, we will discuss each of these 3 testing types to understand the difference between them.

Q. What is the difference between Performance Testing, Load Testing, and Stress Testing?

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Web Application Load, Stress and Performance Testing Using WAPT

Why most of the manual testers fail when testing websites for performance? There are a couple of reasons for the failure:
They don’t have proper tools to test website for performance and
They don’t have skills required for performance testing.

Does that mean you should wait until your stakeholder report the performance glitches in a web application you developed? Definitely not! Many testers are good at testing websites manually and they report almost every defect while testing against standard test cases. BUT, when the same tester performs load or stress tests, they get stuck either at resource (required tools) level or at the skill level.

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