Docker Resource Management Concepts

External

• https://fabiokung.com/2014/03/13/memory-inside-linux-containers/

Internal

• Kubernetes Resource Management Concepts
• Java in a Container

Overview

The docker runtime will kill a process that it is attempting to exceed the resource limits, such as memory specified with -m.

The resource usage statistics for running containers can be displayed with:

docker stats

Controlling CPU

CPU Share Constraint

https://docs.docker.com/engine/reference/run/#cpu-share-constraint

Also see:

cgroups - Controlling Relative Share of CPU

CPU Quota Constraint

https://docs.docker.com/engine/reference/run/#cpu-quota-constraint

Also see:

cgroups - Controlling CPU Throttling

User Memory Constraints

• https://docs.docker.com/engine/reference/run/#user-memory-constraints

Also see:

CGroups Memory Limit

Organizatorium

• Docker switches (-m, -memory and -memory-swap) instruct the Linux kernel to kill the process running inside a container if it tries to exceed the specified limit.