Scalability Testing

Scalability Testing is the non functional Testing. In this Testing we check the capability of the system in scale up or scale down. Scale Up and Scale down to means to check the capability of the system or Network to check the growing amount of work in order to accommodate that growth. In Scalability Testing we measure the system capability in terms of growing the workload per user, Growing the concurrent users or the size of the database.

The main goal of the Scalability Testing to determine the user limit for the web application and check the end user experienced. This is verified under the hight load.

When we test an application we are not sure the the number of user will access this web application. So in starting we prepare the 3 sets to check the load first for the basic level(Basic Load), second for the advance (Medium Load) and third one is the extended (High Load) to check the web application.

Attribute of Scalability Testing:

Response Time of the web server after request sent to the server.
Throughput
Hits Per Second to the particular web page
Request per Second onto the server
Transaction Per Second from the software
Varies Performance with varies number of Users
Verify Performance in High Load
CPU Usage during varies number of Users
Memory Usage during varies number of Users
Network Usage during varies number of Users

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