Docker run weirdly slow with volumes containing many files

[dvohra]

The volume performance issue is a know issue. Refer

Volume sharing performance issues

File access in mounted volumes extremely slow, CPU bound

(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. Actual behavior File access in volumes is many times slower than on non-volumes. Information OS X: version 10.11.4 (build: 15E65) Docker.app: version v1.10.3-beta5 Running diagnostic tests: [OK] doc…