[tokumx] Data Compression

I am currently evaluating the use of TokuMX for a project and I need to estimate storage requirements.  I am using the default compression for the test collection (myCollection).  In the mongo shell, I can check the size with `show collections` and get the following:

> show collections

system.indexes 199.00B (uncompressed), 32.00KB (compressed)

myCollection 5.71GB (uncompressed), 2.86GB (compressed)

What is the actual size of the data (and indexes) on disk for myCollection?  Or should I be looking at the raw data files?

Yes the files on  dbpath is how much your collection + it's indices is occupying on disk,