cgroup_enable

Containers themselves are light, but by default a container has access to all the memory resources of the Docker host. Internally Docker uses cgroups to limit memory resources, and in its simplest form is exposed as the  flags “-m” and “–memory-swap” when bringing up a docker container. sudo docker run -it -m 8m –memory-swap 8m … Docker: Placing limits on container memory using cgroups