(Submitted this via email, but since reports are happening on the forum now, I’m sharing here as well!) Expected behavior File access in volumes should be comparable to access times in non-volumes, similarly to Linux installations of docker, or docker on mac via docker-machine and VirtualBox. Actu…

My findings are similar to yours: docker for mac beta: time dd if=/dev/zero of=test.dat bs=1024 count=100000 real 0m 15.72s user 0m 0.26s sys 0m 0.63s docker-toolbox w/ vmware: time dd if=/dev/zero of=test.dat bs=1024 count=100000 real 0m 8.39s user 0m 0.11s sys 0m 1.79s docker-toolbox w/ vmwar…

Out of curiosity, do you have a /Mac folder mounted in containers started with the mac beta?

No, just the /Users volume but that is because my pwd was /Users/username.

Interesting; according to the beta docs you should have /Mac as well. If it’s not too much trouble, could you test the speed in /Users to see if that’s using a different underlying mechanism than volumes?

Oh, scratch that, if you were using my command from earlier, that’s what mounted /Users for you – that means that you don’t have osxfs working either! It might be worth it to chime in over on this thread for that issue.

I’m a little surprised that run ... -v works for you despite not having osxfuse @tomfrost . I can’t get any remote mount to work (hence the other thread).

We discovered he does have osxfuse. Our issues are just inherent to beta performance issues.

I can add an extra data point here OS X: version 10.11.4 (build: 15E65) Docker.app: version v1.11.0-beta6 Running diagnostic tests: [OK] docker-cli [OK] Moby booted [OK] driver.amd64-linux [OK] vmnetd [OK] osxfs [OK] db [OK] slirp [OK] menubar [OK] envir…

@ddunbar : @cliffom is correct; I apologize for the misunderstanding. osxfs is quite operational, and appears to be the source of the performance problems. Two common fixes to this in the docker-machine + VM solution are to use rsync (docker-osx-dev) to one-way rsync a folder from host to VM, or NFS…

File access in mounted volumes extremely slow, CPU bound

Docker Desktop

tomfrost (Tomfrost) April 6, 2016, 7:58pm 17

Keeping this thread up to date and accurate (sorry for the repeat posts): @cliffom confirmed that these performance tests are, in fact, running over osxfs in his post in that thread. So we’re back to square 1 with the speed issue here.

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File access in mounted volumes extremely slow, CPU bound

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