What is Load Testing? Processes, Types, Best Practices, Tools, and More

Because more users than ever before are relying on web applications to access products or services, load testing is critical in validating that your application can function properly during realistic load scenarios. According to Gartner, the average cost of network downtime for businesses is $5,600 per minute, which is well over $300,000 per hour. Load testing is a type of non-functional software testing in which the execution of a software application is judged under a particular load.

load tester definition

Flood supports a wide selection of load testing tools and deployment options, from cloud to on-premise, and easy to understand load testing guides. You’ll likely have an idea of when your site or application experiences the highest loads. It’s therefore important to consider the timing of your load tests. If you’re in need of a load testing tool that easily integrates into your performance testing strategy, LoadRunner solutions from OpenText are here to help. If you’re unfamiliar with load testing or getting ready to perform your first one, this guide is here to help. Below, we will break down just how load testing works, as well as how you can successfully perform a load test and different load testing tools to consider.

Why is Load Testing Important?

During load testing, various scenarios are simulated to test the system’s behavior under different load conditions. This can include simulating a high number of concurrent users, simulating a large number of requests, and simulating heavy network traffic. The system’s performance is then measured and analyzed to identify any bottlenecks or issues that may occur. By the time any software development project nears completion, it likely will have gone through numerous tests, particularly in an Agile testing environment where testing and development happen concurrently. It’s called load testing, and you can use a tool like Load Testing Tool to get the job done. Load testing is the process of putting simulated demand on software, an application or website in a way that tests or demonstrates it’s behavior under various conditions.

The process is straightforward from the perspective of the functional tester. The component (function) receives inputs and then they compare the outputs to requirements. After they broke, they recorded under what conditions and where the wings broke. However, the chances that the plane would ever experience those kinds of conditions is virtually zero.

Performance vs load vs stress testing

Eggplant Performance can seamlessly integrate with your CI/CD pipeline, and via open APIs, can easily connect with open-source tools like JMeter. For more information, take a look at our site or get in touch with a member of our team. Because load testing should be part of your CI/CD pipeline, it only makes sense for your load testing tool to integrate with platforms like Jenkins and Hudson. Another key feature to look out for is the ability to communicate with systems via open APIs. Moonpig, a greeting card and gift company, has fairly predictable spikes in activity around Valentine’s Day, Mother’s Day, Father’s Day, and in the leadup to Christmas.

Many types of machinery, engines,[2] structures,[3] and motors[4] are load tested. The load may be at a designated safe working load (SWL), full load, or at an aggravated level of load. The governing contract, technical specification or test method contains the details of conducting the test.

What Does Load Testing Mean?

As soon as a prototype or first draft of the application has been built, testing should be performed to detect limitations in the system as early as possible. Testing should continue with each system change, ensuring there is no system degradation. When running a performance test, throughput refers to the amount of data transferred between the front end of the app and the back end over time. Specifically, throughput https://www.globalcloudteam.com/ in testing could mean factors like network bandwidth, database I/O, simultaneous users, maximum memory constraints, and disk reads and writes. Each of these components could theoretically become a bottleneck for the throughput of data from the client to the server and vice versa. Monitoring the throughput of these various bottlenecks as the load increases can help identify causes of system speed degradation.

load tester definition

In a load test (like in a scientific experiment) we want to hold as many variables constant as possible. Then, we want to vary the load (i.e users, temperature, weight) and see how it performs. Load Testing is an important aspect of the software testing process since it guarantees that the software performs to the best of its ability. When load testing is done correctly, it produces high-quality software that adheres to industry requirements.

What is Load Testing?

Record multi-step test scripts of the critical and complex actions your users make, such as button clicks, menu selections, form submissions, shopping cart process, text inputs, as well as image and text validation. Poor performing sites and applications can have a negative impact on conversions, transactions, and most importantly, revenue. Even a few seconds of downtime can significantly impact a company’s bottom line. A recent survey conducted by Veeam, a global leader in the backup and data management space, with over 1,500 IT professionals found that the cost of one hour of downtime for high priority applications was over $84,000. He is skilled in test automation, performance testing, big data, and CI-CD. He brings his decade of experience to his current role where he is dedicated to educating the QA professionals.

  • The governing contract, technical specification or test method contains the details of conducting the test.
  • To help you with conducting performance tests, you can use dedicated tools such as Stackify’s Retrace tool .
  • A test analyst can use various load testing tools to create these VUsers and their activities.
  • This allows you to understand performance in various circumstances, including what peak loads actually look like.
  • Because load testing should be part of your CI/CD pipeline, it only makes sense for your load testing tool to integrate with platforms like Jenkins and Hudson.
  • In order to get to know your application, it’s essential to check how it will handle real users’ behavior.

It is usually carried out after the preparation of load test scripts/cases. Many applications have different modules, dashboards, and functionality. Therefore, many load tester definition scenarios could be built that accurately simulate the user experience. Furthermore, many of those scenarios may be difficult to create with out-of-the-box products.

Related Products

Analyzing load testing results helps create a strategy to fine-tune the application and apply the necessary corrections that must be conducted to deliver high-quality performance. Some testing tools may provide areas where bottlenecks occur or steps that cause an increased amount of time. Additionally, charts and graphs can show you how your user load affected different parts of the test. It’s common to set an acceptable response time that the user is required to withstand. Another possibility is that the financial report generation should take between seconds. It’s important to know if there are any set response timeouts in your application.

load tester definition

Choose a load testing platform best suited for your needs and requirements. When creating a load testing plan, it’s important that you have the necessary tools in place to effectively monitor and diagnose performance issues. Make sure your load testing tool has these capabilities or at least integrates well with tools that do. Performance testing should use software to measure how well it performs or does not perform.

Benefits of load testing

At this point, you can troubleshoot the failure and identify the root cause, hopefully mitigating the failing component, or at least flag the bottleneck for future fixes. Depending on the specific need, use case, or technology of the system being tested, the LoadView platform can run different user simulation types, for example, HTTP/S and real browser-based simulations. If you are creating an application and are unfamiliar with load testing, this article is for you. As we add hits to the software, the system should be able to withstand traffic until we reach our expected weight limit. Seeing a drop in the yellow line on the graph would indicate that there is a problem and that the weight limit is a lot lower than desired.

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