[MacPerl] Memory leak?

[Strider <Strider@clarityconnect.com>]

I work for an ISP, and I'm working on a database parsing problem. It inputs
a database consisting of (tab delimited) userid, date of record, online
time (secs), logons, bad discos, and router[s].

It looks for duplicates using a hash system (not too accurate, I know, but
it works, and I figure it's much faster than using s// (am I wrong?)) and
outputs a database without duplicates. The file I'm parsing is 4.7mb, and
using 10mb of memory, Perl runs out. Is there a leak here, do hashes take
up a huge amount of space more than tab-delimited text, or what?

#!perl
for $i (0 .. $#ARGV) {
	open (IN, "$ARGV[$i]") || die "couldn't open file in"; # open file
dropped on droplet
	while (<IN>) {
		chomp ( @info = split/\t/ ); # @info = id, date, online
(secs), logons, bad discos, router[s]
		$user = shift( @info );
		$date = shift( @info );
		$data{ $user }{ $date } = join /\t/,@info; # now %data
	}
	close IN;
}

foreach $user ( keys %data ) {
	foreach $date ( keys %{ $data{$user} } ) {
			$output .= "$user\t$date\t$data{ $user }{ $date }\n";
	}
}

open (OUT, ">nodup.tab");
print OUT $output;
close OUT;

Thanks,
	Strider



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