Apache JMeter is an open-source Java application that tests load and functional behavior and performance in applications. Created initially to test web applications, it has expanded its functionality to test other functions. For instance, you can test a server to see how efficiently it works and how many user requests can be handled simultaneously.
You can use JMeter to test functional performance and regression tests on different technologies. This Java desktop application has an easy-to-use graphical interface which uses the Swing graphical API. You can run JMeter on any environment that accepts a Java virtual machine, such as Windows, Linux, and Mac.
What protocols does JMeter support?
- Web - HTTP, HTTPS
- Web services - SOAP/XML-RPC
- Email service - POP3, IMAP, SMTP
- FTP service
- Database via JDBC drivers
- LDAP
- Native commands or shell scripts
- TCP
- Java objects
How does JMeter work?
JMeter sends requests to a target server by simulating a group of user requests. Then it collects and calculates statistics on the performance of the target. This target can be a server or an application.
You can test the performance of static resources, such as JavaScript or HTML, and dynamic resources, such as JSP, Servlets, and AJAX. It is also helpful to determine how many concurrent users your website can handle.
There are two main tests you can carry out with JMeter: load test and stress test. The load test models expected usage of a server by simulating multiple users accessing the web server simultaneously. The stress testing aims to find the maximum load capacity of the server or application.
Apache JMeter Key Features
- JMeter enables fast test plan recording, building, and debugging via a featured test IDE (integrated development environment).
- Command-line mode allows carrying out load tests from any OS compatible with Java.
- JMeter can extract data from most popular response formats, such as HTML, JSON, XML.
- JMeter is entirely portable.
- A multithreading framework allows you to simultaneously test multiple samplings and separate thread groups.
- Thanks to the caching feature, you can conduct offline analysis or replay test results.
Apache JMeter Benefits
- As open-source software, it is freely available and continuously improved.
- The setup is user-friendly, and no installation is needed.
- The GUI (graphic user interface) is intuitive and easy to use.
- You can write your own tests and use the visualization plugins to extend the testing.
- It is a platform-agnostic tool. For example, JMeter can work with Linux by clicking on the JMeter shell script. On Windows, you can call up JMeter by starting the jmeter.bat file.
- Since the test plans are stored in XML format, you can generate a test plan using any text editor.
- You can simulate a heavy load on a server, a group of servers, a network, or an object. Use JMeter to test an application or server's strength and performance under different load types.
The JMeter extensible core has numerous benefits:
- Unlimited testing capabilities via pluggable samplers.
- You can choose multiple load statistics with pluggable timers.
- Visualization plugins and data analysis enable customization.
- Continuous integration via third-party open-source libraries (Maven, Gradle, and Jenkins).
Reviews from Real Users
Stephen B., I.T. Architect, Analyst, and Developer at an educational organization, says, "The scripting ability is most valuable. It is easy to use. There is a UI, and you can go in there and figure those things out. After you've got a good set of tests, you basically have a scripted document that you can grab and execute in a pipeline. It is pretty quick to set up, and you can scale it and version control it."
"I like the fact that JMeter integrates well with other tools," adds the Founder and Principal Consultant at a tech services company.
A Quality Engineering Delivery Leader at a financial services firm says, “The performance of the solution is excellent. They have designed the product so that it is very easy to configure. You can basically do anything you like with the product. It's not very restrictive. We like the fact that the technology is open-source.”
BlazeMeter ensures delivery of high-performance software by enabling DevOps teams to quickly and easily run open-source-based performance tests against any mobile app, website or API at massive scale to validate performance at every stage of software delivery.
The rapidly growing BlazeMeter community has more than 100,000 developers and includes prominent global brands such as Adobe, Atlassian, Gap, NBC Universal, Pfizer and Walmart as customers. Founded in 2011, the company is headquartered in Palo Alto, Calif., with its research and development in Tel Aviv.
WAPT Pro (https://www.loadtestingtool.com) is a load and performance testing tool that works for any web site from a simple web service to a customized ERP or CRM solution. Mobile web applications, corporate portals and intranet sites implemented with any technologies can be easily tested with WAPT Pro.
The test is created in a matter of minutes by recording it in a browser. A few clicks are required to make thousands virtual users concurrently execute duplicated sessions against your site. A convenient user interface lets you design data-driven tests with help of variables and session-specific values extracted from the server responses. This is done explicitly in the properties of each HTTP request. No scripting is required for the test implementation.
Descriptive graphs and reports will let you analyze the performance parameters of the system components under various load conditions. You can isolate and fix any bottlenecks and optimize your software and hardware configuration.
WAPT Pro is quite efficient and scalable. While the default configuration is sufficient to run up to 4k concurrent virtual users, you can easily extend it by adding multiple servers connected to a single workplace component. This way you can emulate up to 1M users.
All components can be used in any virtual or cloud environment. A special edition is provided through the Amazon EC2, where you can use it at hourly price that depends on the test load volume.
