Using queueing theory and traffic flow equations, this article builds a mathematical model to explain why travel times during the Mid‑Autumn and National Day holidays can be three times longer than normal, analyzing highway speed, vehicle density, entry/exit delays, and sensitivity of key parameters.
This article traces the step‑by‑step evolution of an AB testing platform—from its initial 1.0 version with basic traffic splitting, through the 2.0 era that introduced multi‑layer orthogonal traffic models and real‑time metric pipelines, to the 3.0 era focused on usability, stability, and advanced analysis—while sharing concrete design decisions, implementation details, and lessons learned.
This article details Meituan's technical approach to handling massive traffic spikes during large‑scale promotions, covering background of the O2O deal platform, traffic‑model construction, capacity‑budget calculations, micro‑service architecture evolution, pressure‑test strategies, and the PTP performance‑testing environment used to validate system limits.
