cgroups v2 (control groups version 2) is a powerful Linux kernel mechanism that allows you to isolate and limit system resources such as CPU, memory, and disk I/O for groups of processes. Using cgroups v2, it is possible to achieve stable and predictable application behavior — especially in containerized environments like Docker and Kubernetes. In this article, we take a deep dive into how cgroups v2 works and how it can be used to control resources at the process level, enabling more efficie...