This statement is duplicating the entire hash: 

my %hash = get_hash();

[download]

Instead of: 

get_hash {
    my %hash; 
    ## populate %hash;
    ...
    return %hash;
}

...
my %hash = get_hash();

...
    if( defined( $hash{ $data[0] } ) ) {

[download]

Use: 

get_hash {
    my %hash; 
    ## populate %hash;
    ...
    return \%hash;
}

...
my $hashRef = get_hash();
...
    if( defined( $hashRef->{ $data[0] } ) ) {
## Note the arrow .......^^

[download]
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In reply to Re: Memory consumption by BrowserUk
in thread Memory consumption by pachkov

Title:
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