Brief on load testing an application

The article about load testing, there is initial level information about Brief on load testing an application. This is very useful information for beginners.

Brief on load testing an application

At first, we will see why load testing require on web applications.

Why Load Test an Application

  • Does the web application respond quickly enough for the intended users?
  • Will the web application handle the expected user load and beyond that?
  • Will the web application handle the number of transactions required by the business?
  • Is the application stable under expected and unexpected user loads?

Types of Performance Testing

Component Testing: Find out the behaviour and performance of each tier

Load Testing: Find out whether the application can handle the expected load upon deployment under real-world conditions or scenario.

Stress Testing: Find out the application’s breaking point. Apply testing that measures whether the application’s environment is properly configured to handle expected or potentially unexpected high transaction volumes.

Volume Testing: Find out the stability of the system with respect to handling large amounts of data over extended time periods.

Objectives of Performance Testing

Application Response Time – How long does it take to complete a task?

Reliability – How Stable is the system under a heavy work load?

Configuration Sizing – Which configuration provides the best performance level?

Capacity Planning – At what point does degradation in performance occur?

Acceptance – Is the system stable enough to go into Production?

Bottleneck Identification – What is the cause of degradation in performance?

Regression – Does the new version of Software adversely affect response time?

Product Evaluation – What is the best server for 100 users?

Functional vs. Load Web Testing

Objective of Functional test


Example – Do business processes function properly after implementation?

Objective of Load test


Example – Will 2,000 concurrent hits crash the server?


Example – Is response time acceptable according to specifications?

Functionality under load

Example – Do business processes function properly under heavy load?

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