Expected: no performance degradation on host
CPU usage spike when host FS is modified and volume is shared with guest
Steps to reproduce the behavior
docker run --privileged=true --name=build -a stdin -a stdout -a stderr -it -v $HOME/somedir:/src ubuntu bash
- host:
cd somedir; svn co some-large-repository
- open Activity Monitor
Activity Monitor shows:
com.docker.hyperkit 154%
com.docker.osxfs 48%
kernel task 25%
svn 20%
iTerm2 13%
I can’t be certain, but it seems there’s causation here, shared volume modifications somehow trigger docker activity.
pinata diagnose -u
OS X: version 10.11.5 (build: 15F34)
Docker.app: version v1.11.1-beta12
Running diagnostic tests:
[OK] Moby booted
[OK] driver.amd64-linux
[OK] vmnetd
[OK] osxfs
[OK] db
[OK] slirp
[OK] menubar
[OK] environment
[OK] Docker
[OK] VT-x