Load testing is an essential part of software testing that helps evaluate the performance and scalability of a system. It involves subjecting the system to anticipated levels of user demand and analyzing its response. The goal of load testing is to identify performance bottlenecks, such as high response times, slow transaction processing, or system crashes, and ensure that the system can handle the expected load without compromising its functionality.
During load testing, various performance metrics like response time, throughput, and resource utilization are measured and analyzed. This helps in identifying the maximum load the system can handle, determining if additional resources or optimizations are required, and ensuring that the system meets the desired performance objectives.