Blog de Pierrick Le Gall

What's the most optimized Perl code to read lines in a file, extract fields from each line, modify fields and write lines in a new file? I've been working on this question, and here are the result of my test. For my bench, I've used a reference input file made of 1,700,000 lines. Each line containing 6 fields. Input line example 0000482005032030708847018-000000764930-0000079000.

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In Perl Best Practices, I've discovered the use of module Benchmark. This module offers a method to compare the time required to execute a list of subs. In this post gives an example of use of Benchmark and I also propose a script to benchmark scripts, not only subs.

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