What's load testing?
Load testing is a type of software testing that is conducted to measure how well a system can handle a specific amount of load or traffic. The purpose of load testing is to determine whether a system can function effectively under normal and peak usage conditions, as well as to identify any performance bottlenecks or areas for optimization.
Load testing involves simulating a high volume of traffic or user activity against the system being tested, in order to measure its response time, throughput, resource utilization, and other performance metrics. The goal is to identify the maximum load the system can handle without experiencing performance degradation or failures.
Load testing can be performed at various stages of the software development lifecycle, from the early stages of development to production. It is an important part of ensuring the quality, scalability, and reliability of software applications, particularly those that are web-based or distributed.
What's JMeter?
Apache JMeter is an open-source software application designed to load test functional behavior and measure performance. It can be used to simulate heavy loads on servers, groups of servers, or network objects to test their strength or to analyze overall performance under different load types. It is primarily used for testing web applications, but it can also be used to test other types of network protocols. JMeter provides a variety of tools for analyzing and reporting on test results, including graphs and charts, and can be integrated with other testing and development tools.
Will it be better, if I can write the performance test in C# by myself
It depends on your requirements and expertise. JMeter is a widely used open source tool specifically designed for load testing and performance measurement, and it offers many built-in features and plugins that can simplify the process of load testing. If you are familiar with C# and prefer to write your own tests, you can certainly do so, but it may require more effort to set up and configure the test environment and to build the necessary features from scratch.
If you have specific requirements that are not easily met by JMeter, or if you have a team that is already familiar with C# and prefers to use that language, then it may make sense to write your own performance tests. However, if you are looking for a more streamlined and ready-to-use solution, JMeter may be a better choice.