Distributed Load Testing with JMeter (2023)

FAQs

Can distributed testing is done by JMeter? ›

Distributed testing enables having a local JMeter (master) that handles the test execution, together with multiple remote JMeter instances (slaves) that will send the request to our target server. But before being able to run JMeter in a distributed way, there are a couple of simple steps you must perform.

Limited support: JMeter doesn't support ajax, javascript etc. We can't render it like a browser so we can't run the Javascript in the web application. It has limited support for the flash and other scripting languages, which will affect the accuracy of the application.

Friendly GUI: JMeter is extremely user-friendly therefore easy to use and doesn't take time to get familiar with it. Full multithreading framework. JMeter allows concurrent and simultaneous sampling of different functions by a separate strand group.

JMeter is NOT a browser and works at the protocol level. This makes it difficult when trying to run performance tests from the user's perspective. For example, JMeter does not support JavaScript, and therefore, cannot support AJAX requests, so in this case, JMeter can only simulate HTTP traffic.

You calculate each force separately and then use a weighted equation to find the total distance the force acts from a point that you select. F = w d Sometimes called intensity, distributed loads have units of force over distance: N/m or lb/ft.

A continuously distributed external force is referred to as a distributed load. For example, the weight of a pile of snow on a roof is distributed over the area of the roof (Fig. 3.33). This means every unit of area bears some part of the total weight of the snow pile on the roof.

I find JMeter a better fit for complexity, strong scripting, CICD inclusion, simple end-point, total load, and performance testing, allowing test re-use. Keep in mind, both tools can perform all of the above operations.

This depends on the test plan and the number of listeners, but users have reported successfully running 1000 threads in a single JMeter instance. Also, note that JMeter can place a much higher load on a system than a human user can, as it can make requests much faster.

In conclusion, we can say that you can simulate up to 10,000 users on a JMeter load test even on a regular laptop. This depends on following 4 simple rules: Use JMeter listeners for debugging purposes only. Run JMeter performance tests in non-GUI mode.

Which tool is better than JMeter? ›

Loadrunner from Micro Focus is a widely used Load Testing tool. It is one of the best alternatives to JMeter that offers a user-friendly monitoring and analysis interface with colored charts and graphics. Features: Supports continuous testing.

JMeter Tutorial for Beginners: Learn in 7 Days.

Knowledge: Jmeter does not require extensive programming knowledge.

The major important thing is for JMeter is that there is no need to have any coding skills. Advantages of JMeter API: Open source. Quick API testing.

The LoadRunner is more efficient and faster to detect the bus present in the application compared to JMeter software. All the system-level performance information can be collected using the LoadRunner software.

The main difference between JMeter and Selenium is that JMeter is best for load and stress testing while Selenium offers full test automation and cross-browser testing. Read on to learn more about the differences!

What is JMeter? The Apache JMeter is an open-source, purely Java-based software. The software is used to perform performance testing, functional testing, and load testing of web applications. It is used to test load testing functional behavior and measuring performance.

While JMeter is considered old technology, it is still being developed and enhanced in line with technology changes.

What are types of distributed loads? ›

Pressure, load, weight density and stress are all names commonly used for distributed loads. Distributed load is a force per unit length or force per unit area depicted with a series of force vectors joined together at the top, and will be designated as w(x) to indicate that the distributed loading is a function of x.

Distributed load testing allows you to mimic the same behavior at different times against your environment outside of your own network. You first created a functional test. You added some data to it, to make it more realistic. Then, you could generate a scenario with a bunch of test steps.

Distributed load testing is running a test on several different computers at a time. It makes possible simulating a large number of virtual users and involves generating a lot of traffic. That is why using a single computer is not enough.

Distributed loads are forces which are spread out over a length, area, or volume. Most real-world loads are distributed, including the weight of building materials and the force of wind, water, or earth pushing on a surface.

What is a Distributed Load? • A load applied across. a length or area. instead of at one. point.

One example of a distributed application is an e-commerce platform that distributes different functions of the application to different computers in its network. The servers or computers host different functions, such as the following: Accept payment from customers at checkout.

Because JMeter uses only standard Java APIs, please do not file bug reports if your JRE fails to run JMeter because of JRE implementation issues. Although you can use a JRE, it is better to install a JDK as for recording of HTTPS, JMeter needs keytool utility from JDK.

There is just one prerequisite for downloading and installing JMeter: to have Java installed in your system.

How many threads JMeter can handle? ›

JMeter allows you to run multiple processes in the same box, and it's usually pretty reliable generating up to 200 threads per JMeter instance. If you need more than that, I'd recommend using multiple JMeter instances. A modern machine with some tweaking can easily generate 500 to 1000 threads.

RAM: At least 16Gb RAM, 32GB recommended. Avoid using more than 50% RAM. ECC RAM is not really required, it provides only a marginal stability improved for long running applications. Also, RAM speed has little to no effect on performance.

Disadvantages of Load Testing

Load test script creation requires scripting knowledge of the language supported by the tool. Incorrectly configured or scripted load test plan/script can lead to false performance issues which take a considerable amount of time and resources.

99% Line (99^th Percentile) means 99% of the samples took NO MORE THAN this time.

Throughput is the significant way of finding the performance of the application, higher the throughput good result is considered although throughput may vary from the number of threads per second. Throughput is considered as the number of requests sent to the server per second.

LambdaTest is by far one of the best automation testing tools for 2022 because of its ability to run automated Selenium scripts on a scalable cloud grid. This cross-platform web and application automated testing tool also allows testers to perform interactive live testing on 2,000+ real web browser environments.

JMeter and Selenium are both used for web application testing. But the main difference is that JMeter is mostly used to test the performance of web applications under load and stress. On the other hand, Selenium is best suited for automation and cross browser testing of a website.

The Groovy language is used as a scripting language for JMeter. When it comes to improving JMeter's functionality, Groovy has proven to be a powerful, and yet lightweight, language in terms of performance.

JMeter is a pure Java desktop application. It requires a fully compliant JVM 6 or higher. You need to download and install the latest version of Java SE Development Kit.

Is JMeter free or licensed tool? ›

Free of cost: JMeter is an open-source application that has no licensing cost. Performance testing of applications: The application is used to perform performance testing on different types of applications, like Web applications, web services, LDAP, database, and shell scripts.

Apache JMeter is an open source load testing tool. It is designed to measure the performance of websites. This load testing tool can be used in DevOps methodology.

Page - JMeter. A range of automated testing tools are existing in the market to test application features in real time. We use Apache JMeter automation tool to perform load test and measure performance of web sites. Apart from the above we also offer performance, stress and scalability.

Jmeter can be integrated with Selenium via WebDriver Plugin support. Download the plugin and copy the jars in your “lib” folder and “ext” folder. The WebDriver sampler comes with config elements plugins for IE, Chrome, Mozilla and other browsers so that they can be invoked via selenium code written in your sampler.

JMeter and Selenium are both used for web application testing. But the main difference is that JMeter is mostly used to test the performance of web applications under load and stress. On the other hand, Selenium is best suited for automation and cross browser testing of a website.

It is free, very intuitive and has all the possibilities you need to automate your work. Another big advantage of JMeter: open source. You can download the source and make modifications to it if you like.

The Apache JMeter is an open-source, purely Java-based software. The software is used to perform performance testing, functional testing, and load testing of web applications. It is used to test load testing functional behavior and measuring performance.

Distributed and Non-Distributed Testing

On the contrary, distributed testing means that a test consists of several parts and each of them is performed on a separate computer. However, the term “distributed” means not only a simultaneous run of tests on a number of machines, which is specific for parallel testing.

What is distributed testing? ›

Distributed testing is applied for testing web sites and server applications when they work with multiple clients simultaneously. Distributed tests consist of two or more parts performed on different workstations in the network.

In addition to easier configuration of elements, JMeter doesn't require adding beginning or ending transaction elements, which LoadRunner does. In LoadRunner, arranging scripts takes up more time and resources, and it is more complex because it requires managing different agents.

Some of the types of test data included in this method are valid, invalid, null, standard production data, and data set for performance.

Distributed Testing is a kind of testing which use multiple systems to perform Stress Testing. Distributed testing is applied for testing websites and server applications when they are working with multiple clients simultaneously.

There are four main stages of testing that need to be completed before a program can be cleared for use: unit testing, integration testing, system testing, and acceptance testing.

Telephone and cellular networks are also examples of distributed networks. Telephone networks have been around for over a century and it started as an early example of a peer to peer network.

By default, JMeter uses the standard RMI port 1099. It is possible to change this. For this to work successfully, all the following need to agree: On the server, start rmiregistry using the new port number.