Cgroups

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cgroups ("control groups") on Linux allow securely managing the system resource usage of processes.

See also

• Namespaces — wrap system resources, making processes within that namespace appear to have isolated instances of that resource
• OpenRC/CGroups — OpenRC includes support for cgroups.

External resources

• Low level "control group v2" documentation at kernel.org
• cgroups(7) - man page for an overview of Linux cgroups
• Wikipedia article on Linux cgroups