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
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
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
Need Java in the system
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
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?
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
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 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 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 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
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 😊