Through the following concepts, DevOps and performance engineering deliver consistent production performance results, allowing customers to deploy applications efficiently with more confidence and to roll out high performing, stable software that fulfil user expectations.
Performance engineering delivers end-to-end system optimization through a continuous testing and monitoring process. This shifts-left performance and load testing into the development process. That’s unlike traditional performance testing where the testing took place after functional testing was stabilized and the code released.
Once the code is released, performance engineering tracks the app in production by tapping into application performance monitoring (APM) tools.
Cross-Functional Team of Performance Stakeholders
Performance engineering enables collaboration among project stakeholders – from business analysts to developers. Maintaining high performance levels that enhance the customer experience, keeping up with the pace of business, and managing end-to-end performance makes everyone, not just QA/Performance Engineers, a steward of product performance. Here’s how.
Testing Center of Excellence
The testing Center of Excellence (CoE) serves as the trusted testing advisor and the custodian of best practices. The CoE supports different business units, different testing methods (such as DevOps and Agile), and has the flexibility to recommend performance testing and testing tools as needed. To build better testing models and improve test quality, the CoE acts as the single point of consolidating and reusing test data that has been generated and collected across multiple business units over time.
The performance engineer provides a holistic view of all code in development to ensure performance testing criteria is comprehensive, encompasses the bigger picture, and factors all distinct pieces of code in development. The performance engineer is the primary user of performance testing tools and has a high degree of expertise in scripting, designing, running, and analyzing test results. Performance engineering brings the performance engineer to the early phase of development where they can provide performance metrics and scenarios required for code to be considered ready for release. Early involvement means the performance engineer can ensure the solution satisfies the performance expectations set out at the beginning of development. They also confirm that the architecture and design is consistent throughout development.
Developers are experts at coding but often light in both functional and performance testing. They work in their integrated development environment (IDE) and tend to use their preferred tools with little inclination toward learning new ones. Performance engineering shifts-left performance testing which brings it into the software developer’s area of responsibility. With input from the performance engineer, software developers can run performance testing while writing code. The developer doesn’t release their code before it passes performance testing criteria.
The devtester doesn’t exist in classic performance testing since there are clear distinctions between software developers and performance engineers. With performance engineering, the devtester emerges as a stakeholder that connects performance engineering and developer teams. They bridge the gap by having solid coding and testing skills though not quite at the same level of expertise as the developer and the performance engineer. They can run tests quickly and have much greater flexibility than developers in using different tools as is needed.
Business Analysts and Application Engineers
By shifting-right the testing, performance engineering brings on board business analysts and application engineers. This guarantees that business and application performance requirements defining the quality of the user experience are incorporated into the performance criteria. These two roles monitor the app in production to ensure top-notch application performance at all times.