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Locust is an open-source web-based load testing framework. It is based on python and is used to test the functionality and behavior of the web application. For the quality assurance process in any business, load testing is a very critical element to assure that the website remains up during traffic influx as it will eventually contribute to the success of the company. Through Locust, web testers can determine the potential of the website to withstand the number of concurrent users. With the power of python, you can develop a set of test scenarios and functions that imitate a large number of users and can observe performance charts on web UI.

Following can benefit from Locust:

• Usability specialists
• Web app testers
• QA teams
• Software testing managers
• Test engineers

• VM pre-installed with Locust application
• An easy-to-use web interface
• Several interactive metrics graphs to visualize the testing results in real-time
• Ability to download requests statistics, failures, exceptions and test report
• Feature to swarm multiple users at desired spawn rate

• Minimum memory: 8GB RAM
• Minimum vCPU: 2 vCPUs
• Operating System: Ubuntu 20.04

• Type sudo nano locustfile.py in Ubuntu terminal
• Write python code for load testing. For a sample file click here
• Save the file by pressing Ctrl+X and then press Enter button
• Type locust in the directory where the locustfile.py exists. This will start the web server.
• The default port Locust listens to is 8089. You can access the web interface at http://yourip:8089