> Docker is just as fast as running native on Linux Once the docker image is pulled into cache, a runc process is started, that process is placed into a specif

> Docker is just as fast as running native on Linux Once the docker image is pulled into cache, a runc process is started, that process is placed into a specific cgroup and given various isolated namespaces, any volumes are mounted into the file system namespace, any special network mappings are created, and otherwise, yes running within Docker is as fast as running natively.