Enhance FIO to create a nested directory structure...

[elliottecton]

I really want to move from vdbench to fio, but there is one thing that is preventing that transition -- the ability to create a directory structure with fio. The storage I am testing has ingest heuristics that will put different sibling directories on different physical volumes. If I put all of the files in a single directory, it is almost guaranteed the files in that directory will all reside on the same volume, limiting the affinities available for IO.

Is it on the roadmap to enable something similar to vdbench's width and depth parameters?