Software performance engineering is a methodical technique for building software that achieves performance goals. In the early stages of software development, it is most important during the performance testing phase to create a tuned software application whose performance meets all non-functional requirements. Software performance testing, on the other hand, is the process of evaluating the performance of the software system and identifying any bottlenecks.
See the definitions and images below for a better understanding:
Software Performance Testing: Used to test and certify the performance of an application.
Figure 01: Performance Evaluation – Quality Control
Engineering software performance: The goal of software performance engineering is to produce excellent quality software with few or no performance bottlenecks.
Figure 02: Performance Engineering
Business needs serve as the driving force behind performance engineering. It is a method of improving the functionality of the application, beginning with the conceptual design phase. Early deployment of a performance engineer eliminates the need for last-minute application optimization tasks. Simply put, the basic goal of performance engineering is to increase the business value of the organization by identifying potential problems early in the development cycle and reducing the cost of resolving bottlenecks later.
Performance Engineering Need:
Performance engineering results in an application that performs better precisely because the performance was an initial consideration and an inherent part of the design, reducing the need to review and redesign the program in later development cycles.
Performance testing is the last or penultimate stage before going live in traditional software development methodology. The PT is under deadline pressure when the development and functional test phases exceed the allotted time. Performance issues in production occur as a result of the project skipping or rushing performance tests without addressing the bottlenecks. On the other hand, if they perform performance tests and fix bottlenecks by postponing the Go-Live date, the project may have to pay a penalty. In both cases, customer trust is violated. What happens if a performance engineer targets a design early on, only to find few or no performance issues later on without going over schedule? “Software Performance Engineering” must be involved from the beginning of software development to meet this requirement. IT companies are now embracing performance engineering, which will ultimately save performance testers time and effort. It does not mean that the importance of performance evaluators has diminished. Performance testers should confirm the performance of the application, even if it has already been modified, as stated above. Deploying the program without performing quality control in the production environment involves significant risk. That’s why it’s important that the Performance Engineer and Performance Tester work together to create a responsive and efficient apply
