performanceengineering
Performance engineering is a discipline focused on ensuring that software-intensive systems meet stated performance requirements throughout their lifecycle. It blends planning, modeling, design, development, testing, deployment, and operations to optimize performance, scalability, and reliability. Unlike testing alone, performance engineering emphasizes proactive design and governance to prevent regressions and to accommodate growth.
Key activities include defining performance requirements and budgets, building performance models (such as queueing theory or
Measurement plays a central role. Teams specify SLOs and SLIs, track metrics such as response time, tail
In practice, performance engineering integrates with development, operations, and site reliability engineering, emphasizing early involvement, iterative