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Linux Control Groups (cgroups)

A kernel mechanism organizing processes into hierarchical groups with per-group accounting and limits on CPU, memory, IO, and PIDs — cgroup v2 unifies these under a single hierarchy. Exceeding a memory limit triggers the OOM killer; CPU limits enforce quota-based throttling per period.

jeremy Video

Limiting CPU Memory and Disk I/O with Control Groups in the Linux Kernel

Video tutorial: Limiting CPU Memory and Disk I/O with Control Groups in the Linux Kernel