Stress Test Know-How for Messaging Servers and the Parts AI Has Taken Over

KakaoTalk’s messaging team runs always-on stress tests on production-like servers to find capacity limits before changes go live.

Using Locust-based load clients, they model multiple traffic scenarios and compare latency, throughput, and system metrics across versions.

The team benchmarks changes such as observability tools, protocols, frameworks, and infrastructure or OS updates to see how each affects performance.

AI is helping automate parts of the manual testing and analysis workflow, reducing effort in a high-scale reliability process.