Performance, Load, Stress and Volume Testing

Performance Testing:

• In performance testing we test the Responce time, efficiency and processing speed.
• To test the complaince of the system.
  

Example - If u open any website in the Url window the opening of the home page is called as
performance testing.

Load Testing:

• Increasing the number of users at a specific interval of time. Load testing is a combination of capacity testing and longetivity testing.
• Load testing Innitially we will start test with single user and based on the transaction
  time we will increase the user one by one.
  

Example - IF 5 users are using the login page of yahoo mail at the same time the performance
is constant. If 10 users are add by the user at the same time . the performance is constant.
At last In If the users add 20 user at the same time the performance should decreased.

Stress Testing:

• Testing is done with max no of users in low disk space, low memory and low configuration.
• The execution of our application build under customer expected configuration and various
  load levels from high level to low level and low level to high level to estimate load
  balancing is called stress testing.

Example: An users are added to with in the specification of the limit, and cannot be added
beyond that.

Volume Testing:

• To estimate the data base in terms of records.
• We are executing the test with diffrent volume of data (eg. Number of records).
  

Example: If 1 user is accessing how many records are retriving. if 2 users are accessiong how many records are retriving, etc....