Re^2: Needed Performance improvement in reading and fetching from a file

you are right , index + hash turned to be the best combination and i saw speed as below..

Split  : 107 wallclock secs (49.84 usr +  1.81 sys = 51.65 CPU) @  0.0
+2/s (n=1)~
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i considered 2.6 lakh records and whole program is timed hash versus grep, believe me, grep is out of question, its taking time as good as counting from 1 to 2.6 lakh.
i guess i have made a poor choice of using grep in this scenario, but indeed grep cannot be used when it comes to huge data.

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