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. In the software development process, the term load testing is often used interchangeably with other forms of testing such as performance testing, volume testing and reliability testing.

definition of load testing

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. This demo clip shows step by step how to design a test with different types of virtual users, perform load testing of a web load testing meaning application, and interpret the test results. The execution of load testing is critical since it helps to uncover and remove bottlenecks in the process. Also, load testing is efficient in finding memory leaks, buffer overflows, and different code issues. There are many testing tools available on the market that can sustainably assist you in your loading testing efforts.

Load Focus

Similarly, testers can utilize load testing to gauge how the search bar reacts when thousands of users search for items at the same time. With the help of load testing, you might be able to identify poorly written code structures and queries. By simplifying these code structures, you can achieve 2x greater productivity in most cases and up to 10x times more, in extreme ones. Performance testing is vital to the testing process and you cannot hope to make a successful application without performing efficient performance testing. According toDunn & Bradstreet, 59% of Fortune 500 companies lose roughly $46 million per year just because of 96 minutes of downtime each week! Foregoing performance testing can lead to various other performance issues, including enduring downtimes.

  • What’s more, is that it offers continuous improvement in the production environment.
  • Monitor application performance and fix bugs before your code ever gets to production.
  • So many ways exist to do this that it is outside the scope of this chapter.
  • This lead to a loss of $20 million in addition to thousands of frustrated customers.
  • Smoke testing performs low-level background tests, ensuring the system can handle the bare minimum requirements.

If the application completes the action in the given range, then this means the system is performing according to the given benchmark. However, if the application fails to do its job in the given range, then the testers must find out why this delay is happening. For providing information to stakeholders to inform project stakeholders about application performance updates surrounding speed, stability and scalability. With this being said, modern load testing implementation requires new resource-saving and efficient solutions.

Performance Testing vs. Load Testing

At Flood, many of our customers have no performance engineering background at all. Many customers fit into what is now called Site Reliability Engineering, yet many more fit into more traditional Operations or Development roles. Once you have a load test scenario defined, you can run these on our distributed load generators. At Flood, we support over 15 geographical regions in multiple cloud environments, including AWS and Azure, as well as the option to run from your on-premise or other cloud infrastructure using Flood Agent. We place no limit on how or where you choose to run your load generators, and it is entirely up to you. Load testing helps you explore these characteristics of a system under test, in varying load conditions.

Additionally, they are much easier to use than free tools, and provide an unmatched level of functionality. Load Testing is a type of Performance Testing that determines the performance of a system, software product, or software application under real-life based load conditions. Basically, load testing determines the behavior of the application when multiple users use it at the same time. It is the response of the system measured under varying load conditions.

Shift-Left Testing and LoadView

Load testinghelps developers understand the behavior of a system under a specific load value. In the load testing process, an organization simulates the expected number of concurrent users and transactions over a duration of time to verify expected response times and locate bottlenecks. This type of test helps developers determine how many users an application or system can handle before that app or system goes live. Additionally, a developer can load test-specific functionalities of an application, such as a checkout cart on a webpage.

definition of load testing

For example, a word processor or graphics editor can be forced to read an extremely large document; or a financial package can be forced to generate a report based on several years’ worth of data. The most accurate load testing simulates actual use, as opposed to testing using theoretical or analytical modeling. As a result, it is easier for testers to figure out the upper limit of all major components of applications, such as database, network applications, hardware, etc. At the same time, since testers are able to understand the capacity of the system through load testing, the process helps testers to design the service level agreements for the product. It encompasses load testing as well as other forms of software testing and ensures applications keep performing under different scenarios.


We recommend stress testing every once in a while so you know your system’s endurance capabilities. This ensures you’re always prepared for unexpected traffic spikes and gives you more time and resources to fix your bottlenecks. Run performance tests when you want to check your website and app performance, which may extend to testing servers, databases, networks, etc.

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LoadView worked with their network security team to install a private agent on their internal network and run load tests via whitelisted static proxy IPs. The QA team was successfully able to benchmark the new platform, ensuring confidence in the public beta release. A well-known annual campaign to end child poverty needed to load test up to 1-milion simultaneous users accessing their website homepage and donation page in anticipation of their campaign. With HTTP-based user load, a test of this magnitude was easily accomplished at a reasonable price-point, ensuring a successful campaign for the organization. Next, identify how the average user will use the application and write out scripts for some of the common paths of a user. These baselines are often used for comparing more advanced tests when monitoring differences occur in performance under stress.

How Does Load Testing Work?

Capacity testing looks at whether a software application or environment can handle the amount of traffic it was specifically designed to handle. Residential Proxies originate from real users with unique IP addresses all across the world. Therefore, they provide the possibility to send requests from multiple geo-locations as well as spread load traffic through a vast number of source IPs. This provides insights on how customers from different geo locations might be affected under unexpected load. These and other benefits of using residential proxies allow testers to mimic real-life conditions in load testing. In this type of test, a simulated load is again put against the application, but with slightly different goals.

definition of load testing

Due to the need to perform load testing regularly, an organization can develop its own automated load test software in-house. This solution would be customized based on the actual needs of the company. On the other hand, https://globalcloudteam.com/ it requires excellent technical skills and a dedicated team. While load testing requires simulating traffic load as organically as possible, residential proxies can be the most effective solution to fulfill this goal.

Difference between Functional and Load Testing:

For these reasons, you should avoid JMeter and consider a solution like LoadView, which supports web application frameworks and technologies, real browsers, and fully manged load injectors. Load testing software helps test application performance under varying user activity levels. You can set the load testing software to deliver simulations of varying levels and see if applications can work within specific ranges. Using the various load testing tools, we can ensure to deliver a quality product that cannot crash while maximum numbers of users using it simultaneously.

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