There is a system for each mirror in Docker, will there be great overhead

  docker, question

Each mirror in Docker has a Linux distribution system and a complete operating environment.

The main usage of Docker is also to create multiple images and form a complete application through application orchestration.

The more mirrors there are, the more operating environments (distribution systems) will be in the same server, and they themselves will incur overhead.

In this multi-mirror environment, will Docker incur huge overhead due to too many systems?

The cost of the docker container is not very large, far less than a complete operating system.

Docker images run directly on the kernel of the host. For example, alpine image only started a few meters ago.

Docker uses cgroup, and each application running in the mirror is also a hosted process.