You are using <INP> in list context. That will make Perl slurp in the entire file, and turn it into a list of lines.

The standard idiom of processing a file line by line is: 

    while (<IN>) {
        # Processing goes here; the current line is in $_
    }

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That should cut your memory usage as it doesn't read in the entire file in memory (unless there's just one line in the file...)

Abigail

In reply to Re: Memory use when reading a text file by Abigail-II
in thread Memory use when reading a text file by abingham

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