Reading bigger file

[bioinfornatics]

Hi,

I already asked some question about it. I come back with a newest 
^^
why when reading a huge file more i advance into the file more 
that take time to get a line ?


first line is get into 0 msec and that increase so that is a 
problem when your file is around 30 GB!

by example ucmpress one fastq from 
ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/data/HG00096/sequence_read/
use this tiny code  http://dpaste.dzfl.pl/47838d8d

you will see that more the line number is higher more that take 
time to get it.