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Difference between Load Testing and Stress Testing

  • Last Updated : 19 Jun, 2019

Load Testing:
Load Testing is a type of performance testing which determines the performance of a system, software product or software application under real life based load conditions.

Stress Testing:
Stress testing is a type of software testing that verifies the stability and reliability of the system. This test particularly determines the system on its robustness and error handling under extremely heavy load conditions.

Difference between Load Testing and Stress Testing:

Load TestingStress Testing
Load Testing is performed to test the performance of the system or software application under extreme load.Stress Testing is performed to test the robustness of the system or software application under extreme load.
In load testing load limit is the threshold of a break.In stress testing load limit is above the threshold of a break.
In load testing, the performance of the software is tested under multiple number of users.In stress testing, the performance is tested under varying data amounts.
Huge number of users.Too much users and too much data.
Load testing is performed to find out the upper limit of the system or application.Stress testing is performed to find the behavior of the system under pressure.
The factor tested during load testing is performance.The factor tested during stress testing is robustness and stability.
Load testing determines the operating capacity of a system or application.Stress testing ensures the system security.

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