cgroups

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Control groups — a Linux kernel feature for limiting, accounting, and isolating resource usage (CPU, memory, I/O, network) of process groups. Combined with namespaces, cgroups form the foundation of container technology. cgroups v2 provides a unified hierarchy and improved resource management.

Key Properties

• CPU Limits
• Memory Limits
• IO Limits

Related

• Namespaces (isolation — the other pillar of containers)
• OOM Killer (triggered when cgroup memory limit is exceeded)
• Docker (uses cgroups for resource limits)

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operating-systems linux containers