Overview of Scalability Testing

What is Scalability testing?

Here I am going to explain about scalability testing. This is a non-functional type of testing.
In this type of testing, we check the ability of network, system or a process to continue to functioning well. In scalability testing, we perform the testing with different -different changes of the size and volume and then check that what is the speed of the system is it growing fast.

Scalability testing confirms that an application can handle user traffic, data volume, transaction counts the frequency of an application. In this, we can test the system, process, and databases ability to meet a growing need.

It also works as performance testing, in this, we only focused on the behavior of the application, when tested under excess load. The need of scalability testing is to measure the point where the application stops scaling and identify the reason behind it.

When any application undergoes performance testing, some of the Scalability Testing attributes are defined below:

1. Response time-> It is the measure taken time by a web application to respond to a user request.

2. Number of User for performance test-> Dependent on the application types,  it is always tested by the tester number of users that it can support without its breakdown or busy standby situation.

3. Threshold load-> Threshold load is the number of users requests that web server could handle with the desired throughput.

4. CPU usage-> Any application has the source code written in the different programming languages like JAVA, PHP, ASP, etc.

5. Memory usage-> Like CPU usage, the performance test is done to test the memory usage. As we all know at machine processing level there is RAM (Random Access Memory) which is used by the machine or CPU in an as much optimized manner.

6. Request, Transaction, and Execution time

7. Network usage:  Network usage with maximum utilization of server response.

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