See other nodes like yours. That map is an expensive one. Benchmark this instead: 
my %rev;
while ((undef, my $value) = each %forward) {
  $rev{$_} = 1;
}

[download]

-- Randal L. Schwartz, Perl hacker

In reply to Re: Re: Re: Looking up a hash by value by merlyn
in thread Looking up a hash by value by tanger

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