Docker in MacOs is very slow

Question

I have this docker-compose.yml:

version: \"3.1\"
services:

    memcached:
      image: memcached:alpine
      container_name: universal-memcached2

    redi         


        

Answer 1

As mentioned in other answers, the issue comes down to the way Docker interacts with the file system on OSX.

I found a great article on how to make things a lot faster on OSX:

https://vivait.co.uk/labs/docker-for-mac-performance-using-nfs

From the article, the real solution is to change the file system to use NFS, but as I know nothing about Docker (it was set up for me at work), I opted to use an option available in newer versions of Docker

I added :delegated to all of the options under volumes in docker-compose.yml. After restarting my containers, every was nearly twice as fast as before. Not as fast as native, but fast enough.

Example from article:

app:
    build:
        context: .
        dockerfile: ./docker/app/Dockerfile
    working_dir: /app
    user: "www-data"
    volumes:
        - ./:/app:delegated
        - ./:/another_folder:delegated

The NFS example is quite long and requires basically copying half of the article so I won't add it in, but this :delegated solution is good place to start.