Not sure if this would be an acceptable solution, or rather the start of one but if you have some process which reads all that html into a file, say, off the web. You could dump the pages using Storable and save some disk space. And perhaps some time in processing when reading back.

#!/usr/bin/perl
use strict;
use warnings;
use Storable;

use Data::Dumper;

$/ = '---this line is the separator---';

open my $html, 'test.html' or die "unable to open test.html: $!\n";

my %PAGE;
my $pagecount = 0;

while (<$html>) {
    $_ =~ s#$/##; # strip the separator line
    $pagecount++;
    $PAGE{$pagecount} = $_;
    store \%PAGE, "Test.file";
    #print "Data to process: \n$_\n";
}

my $pages = retrieve('Test.file');

print Dumper $pages;
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