DevOps Coach

Sep 17, 2025 · Cloud Native

Why CPU Limits Can Slow Down Your Kubernetes Pods – A Deep Dive into cgroups v2 and CFS

This article explains how Kubernetes CPU requests and limits interact with Linux namespaces, cgroups v2, and the Completely Fair Scheduler, showing why limits can cause throttling, increase latency, and mislead monitoring, and offers guidance on when to use or avoid CPU limits.