Here each user is making a request over the internet, which is later passed through a firewall.Īfter firewall, we have a Load balancer which distributes the load to any of the web servers, and then passes to the application server and later to the database server where it fetches the necessary information based on the user request. In the below diagram we can see how different users are accessing the application. On the other hand, virtual users just hop in and hop out of the system irrespective of the other user activities. So what is meant by a concurrent user and a virtual user?Ĭoncurrent users are those who log in to the application and at the same time, perform a set of activities together and log off the application at the same time. We want the system which can handle a load of 5000 users with the response time of 2-5 seconds for all the concurrent users. So what should we observe hear? Is it just the load handling capability of the system or is it just the response time requirement? Thus whenever we modify the load, we monitor the behavior of the system under various conditions.Įxample: Let’s assume that our client requirement for a Login page is 2-5 sec and this 2-5 sec should be consistent all throughout until the load is 5000 users. This testing usually measures the speed and capacity of the application. Load Testing is a subset of Performance Testing, where we test the system’s response under varying load conditions by simulating multiple users accessing the application concurrently.
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