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Jan 22, 2020 · Backend Development

How to Simulate 100 Billion WeChat Red‑Packet Requests on a Single Server

This article details a practical experiment that reproduces the load of 100 billion WeChat red‑packet (shake‑and‑grab) requests by simulating 1 million concurrent users on a single machine, achieving peak QPS of 60 k and demonstrating the architectural choices, hardware setup, and monitoring techniques required for such high‑throughput backend systems.