JMeter is a software that can perform load test, performance-oriented business (functional) test, regression test, etc., on different protocols or technologies.
Performance testing is a process by which we can test the performance of applications against performance metrics. By performing this testing, we can identify whether applications fail or lack in their performance. The performance testing results indicate areas where we need to make further improvements. Also, we can ensure that applications meet the requirements set at the beginning of the application development.
Stress testing allows for finding the maximum load capacity that web servers can handle. If a web server is receiving a load beyond its maximum capacity, it will start functioning slowly and create errors without a doubt.Not only servers you can perform stress testing to measure the performance of other resources such as CPUs, hard disks, solid-state drives, memory, and so on.
With load testing, you can measure the capacity of web applications when multiple users use the applications at a time. By performing load testing, you can track the behavior of applications and identify bottlenecks in the normal functioning of applications.Also, you can test the performance of applications at normal workload as well as peak usage. Thus, you can measure the response time and consistency of the applications accurately.