An in-depth exploration of core systems performance engineering: formalizing latency, throughput, and resource utilization, Little's Law, and analyzing multi-worker stochastic queue dynamics and diurnal traffic cycles with interactive simulators.

Non-functional requirements refer to quality attributes or system characteristics that describe how well a software system or solution performs or behaves. This article covers well-known non-functional requirements such as reliability, availability, scalability, performance, and durability.