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Load testing vs. stress testing vs. performance testing?

Rony_Sklar - PeerSpot reviewer
Community Manager at PeerSpot (formerly IT Central Station)

What is the difference between stress testing, load testing and performance testing? When is each type of testing needed?

PeerSpot user
11 Answer

reviewer1369038 - PeerSpot reviewer

Performance Test - A performance test is done to verify that an IT system performs according to the non-functional requirements.
If non-functional requirements are not available a performance test can be done to verify the actual performance before a release.

Per definition ”Load Testing” and “Stress Testing” are two types of Performance Tests.

Load Test - A test that generates transactions to a targeted application with intention of verifying how the application reacts to a specific load.

Stress Test- A stress test is a performance test where the level of load is increased over the expected load in production.
The focus of the test can be to see how a specific function is handling high-load or as a test that generates production-like transactions with a higher than expected throughput.
The goal is to identify what part of the architecture design is limiting the performance and if the application recovers when the load is decreased.

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