The Africa Kingdom Business Forum

Load Testing vs Stress Testing: How to Test Scalability

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 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. In the past, performance testing was typically done towards the end of a development project. This resulted in errors and issues being detected later in the process, which meant developers would go back through the code and fix issues, which typically delayed the release.

  • A widespread misconception amongst people is that Load Testing can be performed at the end of SDLC.
  • Many use it for debugging to view the HTTP requests their computer is sending to a service or website.
  • The faster your pages load, the more likely customers will stay – and return in the future.
  • Before launching a website, you need to make sure it can handle the expected level of activity without a slowdown or downtime.
  • See for yourself how you can easily build, scale, analyze, and automate performance tests.
  • JMeter can generate heavy load on different types of apps, including web apps, web services, and databases queries, among many other protocols.
  • Development and operations teams should check for security gaps; conduct load testing; assess scalability; consider UX; and map servers, ports and paths.

While it appears like a browser from the perspective of the web server, it cannot execute all actions a browser could perform, such as actually rendering the page and executing JavaScript. JMeter is good for generating requests on a website from many simultaneous users during load testing. An important distinction of JMeter is that it sends virtual users to your website or web application from your own computer, therefore, you cannot gather real-world traffic data like you can with LoadView.

How do you learn and improve your QA engineering skills in SDLC?

Tests can be scheduled or run on-demand, but tests are typically planned for a time when traffic is low so that any problems caused by the heavy traffic will affect the fewest number of actual customers. Load Testing is a non-functional software testing process in which the performance of software application is tested under a specific expected load. It determines how the software application behaves while being accessed by multiple users simultaneously. The goal of Load Testing is to improve performance bottlenecks and to ensure stability and smooth functioning of software application before deployment. Most load testing tools let you record or write a script that interacts with a website or application.

Before performance testing, it is important to determine your system’s business goals, so you can tell if your system behaves satisfactorily or not according to your customers’ needs. Different types of performance tests provide you with different data, as we will further detail. Load testing gives excellent protection against poor performance and accommodates complementary strategies for performance management and monitoring of a production environment. In Software Engineering, Load testing is commonly used for the Client/Server, Web-based applications – both Intranet and Internet.

Create Less Flaky Automation Tests. Quality content right in your inbox

The criteria for passing or failing a load test (pass/fail criteria) are generally different across organizations as well. There are no standards specifying acceptable load testing performance metrics. BlazeMeter lets you simulate over two million virtual users from 56 locations across the globe to execute performance tests continuously from development to production.

What is QA load testing

After establishing your load testing scenarios, decide on your target load numbers, as well as how and where you are initiating the load from. Others may require multiple machines for generating large numbers of simultaneous users. Many systems allow for spinning up multiple scenarios per machine and even help you spin up multiple machines in the cloud. Initially, determine the goal of the application, identify your audience, and the size of the audience. Identify the ideal average number of users that might simultaneously use the product and then identify the maximum number of simultaneous users during a heavy stress event. Load testing should be performed before any major event that could potentially bring large amounts of simultaneous traffic to a website.

Improved Scalability

By conducting performance tests, we do not detect bugs, we find system performance bottlenecks before releasing to market. One of the main factors restraining cross-functional testing and developer participation is selecting the wrong testing tool. Without the right testing tool, “whole team testing” becomes difficult, if not impossible. When SREs participate in the testing process, they break the silos among engineering managers, QA, and operational teams, incorporating QA into the SLOs shared across the organization. The waterfall methodology has declined in popularity in recent years, yet many testing tools remain unchanged.

What is QA load testing

Furthermore, the scripts you create for your test can be integrated into our monitoring platform for regular uptime audits once your site or application goes into production. As a QA engineer, you need to ensure that your system can handle high volumes of traffic and requests without compromising its performance or security. Load testing and stress load test definition testing are two types of performance testing that can help you measure and improve the scalability of your system. In this article, we will explain what load testing and stress testing are, how they differ, and how to use them effectively. Front-end performance testing measures how fast your website loads and displays content for users.

Accessibility Testing

Ideally, a test should be performed in a production environment during off-peak hours, before a public release of any new code, or website or web app updates. This should be completed well enough ahead of the public release, allowing for last-minute system tweaks should the test fail. There is no end to the amount and variety of tools and platforms in the market today, with a variety of features. From platforms leveraging open-source only tools like BlazeMeter, to headless browser only solutions like Phantom JS, or platforms offering multiple user simulations, like LoadView. Choose a load testing platform best suited for your needs and requirements.

These scripts can then be uploaded into the LoadView platform and replayed by a virtually unlimited number of concurrent users. Additionally, you can setup scripts that run at specific intervals and alert you and your teams if errors occur, ensuring everything runs smoothly and properly. These modern engineering practices enable teams to move through the phases of software development faster and build products with exceptional quality.

Physical load testing

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 consider specific industries that depend on high-volume transactions, like financial services or large online retailers, the impact could likely be more significant. Also indicated in their survey were the effects on customers and visitors, such as a decline in customer confidence, tarnished brand integrity, drop in stock price.

What is QA load testing