Duplicated pages in docker

[wenqicao]

I am learning how docker designs its memory management parts. I want to know if docker considered the ‘kernel same-page merging’ problem. For instance, multiple containers make use of the same shared libraries, do they occupy multiple copies in memory? how docker solves this?

Thanks

[dvohra]

@wenqicao

multiple containers make use of the same shared libraries

If multiple containers make use of the same shared libraries, it is better to use a cluster manager such as Kubernetes and create a shared volume.
http://kubernetes.io/docs/user-guide/volumes/#hostpath