in reply to Re^2: Reading HUGE file multiple times
in thread Reading HUGE file multiple times

On my system, the code above indexed a 6.4 million record, 5GB file in 57 seconds. 

1367141700
1367141757
6348909

[download]

Once indexed, accessing the records randomly runs at 1 second per thousand.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In Section Seekers of Perl Wisdom