> I think MB indeed makes more sense than kB, so I have changed that now 
> in V7, per attached.
You use 1024² bytes. What about 1000000 bytes per MB, as the unit is about 
stored files?
Also, you did not answer to my other points:
  - use "instr_time.h" for better precision
  - invert sizeonly
  - reuse a test
-- 
Fabien.