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JMeter Introduction, Advantages, and Installation

Let’s discuss about what is Performance Testing, the different tools used-JMeter and how it is useful, advantages and disadvantages, JMeter Installation

What is Performance Testing?

Performance testing ensures that an application can handle user traffic without any performance issues

It is very important to verify whether the product meets the expected or required performance. Unfortunately, we figure out this pitfall post-delivery of the product. But performance has become an inevitable factor nowadays, especially for web and mobile applications as the user strength is very huge for each application.

Performance Testing is defined as a type of software testing to ensure that software applications will perform well under their expected workload. It focuses on certain factors of a Software Program such as:

Speed — It Checks whether the response of the application is fast.

Scalability — It determines the maximum user load.

Stability — It checks if the application is stable under varying loads.

Now let’s move ahead with our article and find out some of the best tools used for performance testing.

Types of Performance Testing?

There are different types of performance testing, each designed to test different aspects of an application's performance

1. Load Testing

2. Stress Testing

3. Spike Testing

4. Endurance Testing

5. Scalability Testing

6. Volume Testing

Tools Used for Performance Testing?

1. Apache JMeter

2. Load Runner

3. WebLOAD

4. LoadUI

5. LoadView

6. NeoLoad

What is JMeter?

JMeter is a performance-testing tool

It’s Java-based software that we can easily download and supports multiple platforms

JMeter is used to test the performance of the applications irrespective of load, stress, volume

JMeter is used for web services, API testing web-based applications, and also database server testing

What are the JMeter Requirements?

JMeter has minimum system requirements

What Java Version is used?

JMeter is compatible with Java 8 or higher. You can’t start Jmeter if you don’t have Java installed in your system.

What Operating Systems are used?

JMeter is a 100% Java application and should run correctly without operating system dependency.

What are the Advantages of JMeter?

1. Its open source

2. Friendly to use and lightweight

3. Platform independent

4. Full multi-threading framework

5. Test Results are pretty

6. Easy installation

7. Support multiple protocols

What are the Disadvantages of JMeter?

Memory consumption, JMeter takes a heavy load this lead to the consumption of memory

Web applications, JMeter is good for testing Web applications but not suitable for testing desktop applications

Lack of support for JavaScript, JMeter is not a browser, so it cannot run JavaScript in web applications. It has limited support for processing JavaScript or Ajax, which may affect the accuracy of the simulation.

How does JMeter Work?

Step 1: Create a request to target the server

Step2: Server response

Step3: Saves all responses

Step4: Collect and calculate the statistical Info

Step5: Generate the test reports

How to Install JMeter on Windows Operating Systems?

Installation of JMeter is extremely easy and simple

Step1:

Need Java in the system

Step2:

Download JMeter from google



Once you navigate to that Apache Website download the binaries



After downloading, unzip and locate the folder at any location on your system



Step3:

Go to the located folder and click on apache-jmeter, next click on bin, next click on jmeter



The command line starts running



And your JMeter window starts



What is Element in JMeter?

Different components are called Elements and each element do a specific function

What are the different elements in JMeter?

Thread Group

Samplers

Listeners

Configuration

Steps to follow to Create First JMeter Test:

Step: 1 Start JMeter

Step: 2 Create a Test Plan

Step: 3 Create a Thread Group

Step: 4 Add a Sampler

Step: 5 Add Listeners

Step: 6 Run Test Plan

Step: 7 Save the Test Plan

Thread Group:

Each thread represents one user using the application under test

Every thread stimulates a request

E.g.: If we set the thread number as 50 it allows 50 people to use the application

In the screenshot below we can give the thread number or number of users



Samplers:

Samplers are different requests send by Thread Group

E.g.: Request could be HTTP Request etc.….

In below screenshot we add samplers and HTTP Request



Below is the screenshot for HTTP request where we add protocol, what kind of request




Listeners:

Listeners show the result of test execution in different format trees, tables, graphics, or log files



Below is the example of view result tree




Below is the screenshot for view results in table





Configuration Elements:

Configuration Elements used for setting the default variables which can be used by samplers

Run the Test Plan:



Final Step Save the Test Plan

More other operations are below

Stop: In case, if you want to stop the execution, we can stop by clicking the stop button

Shutdown: It completely removes all the Threads

Clear: It will clear the data which is executed

If you want to run it again we can test the plan with different configurations


Conclude:

In the software industry, the performance of the product plays a very vital role. If we don't come up with the end user expectations we will be at a loss and the end user try to go with some other competitor's product. So, to avoid this we need to check our application and how it is performing using these tools and techniques. By carrying out performance testing, you can optimize an application’s performance and deliver a better user experience. Choosing the right performance testing tool depends on your specific requirements and preferences. Performance testing also helps you optimize the application’s performance, resulting in a better user experience and increased customer satisfaction.


Now, with this, we end the topic of JMeter

Happy Coding 😊

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