How to read fastly files ( I/O operation)

[bioinfornatics]

instead to call mmFile opIndex to read ubyte by ubyte i tried to 
put into a buffer array of length PAGESIZE.

code here: http://dpaste.dzfl.pl/25ee34fc

and is not faster for 12Go to parse i need 11 minutes. I do not 
see how i could read faster the file!

To remember fastxtoolkit need 2 min!