Performance engineering is a process to optimize the efficiency and reliability of systems (applications and software). The process begins in the design and development phases of the system and continues throughout the entire life cycle.
The goal of performance engineering is to ensure the efficient and reliable operation of the system, adequate performance under load, and to minimize unexpected errors and downtimes, allowing users to quickly use it.
The performance engineering process consists of six major steps, which together contribute to optimizing the efficiency and reliability of systems. These steps are listed in detail below.
1. Definition of requirements
As the first step in the performance engineering process, we determine the system requirements, i.e. the expected user traffic, response time requirements and system availability objectives.
2. System architecture design
After defining the requirements, the system architecture is planned. This includes defining system components and connections, and planning for scalability and load management.
3. Performance planning
The process of performance engineering also includes planning the performance of the system, during which we identify the techniques that help optimize the performance of the system.
4. System implementation
The fourth step of performance engineering is system implementation. By implementing the IT system, the components and functions are developed, as well as the optimizations defined in performance planning are incorporated.
5. Performance testing
Performance testing is part of the performance engineering process. This type of non-functional testing makes it possible to measure and optimize the performance of the system before the product is launched. During performance testing, the system is tested with different load scenarios and data volumes, so that it works properly in the real environment, in live operation.
6. Monitoring and optimization
The last step of the performance engineering process is monitoring the performance of the IT system, identifying errors and weak points, and continuously optimizing the coordinated operation of the software.
There is a close connection between performance development and performance testing. Performance testing is one step in performing performance engineering. Performance testing evaluates the stability, responsiveness, reliability, speed, and scalability of a system or application under varying workloads.
It is used to test and analyze the performance of a system or application to ensure that it meets performance requirements. Performance engineering, on the other hand, is a proactive approach to software development that identifies and mitigates performance issues early in the development cycle, starting with design. So the processes and methods of performance engineering support the optimization of applications and software, while performance testing helps to identify weak points and errors in the system.
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