Kubernetes CPU Limits and Go

Kubernetes CPU limits can look straightforward on the surface, but their impact on application performance is anything but simple. This article unpacks how Go services interact with Kubernetes CPU throttling and why a seemingly harmless configuration such as setting a limit of 250m can dramatically constrain performance in production. First published in February 2024, its insights remain just as relevant today for anyone running Go applications in containerized environments and for developers who want to avoid costly slowdowns.