XML::Twig - Memory usage problem

Hello,

I don't know if this is the place for my problem, if not, please point
me to the right direction...thanks.


Consider the following Perl codes...

#===============================
package TextXML;

....

my $t = XML::Twig->new(
	twig_handlers => {
		company => sub {
			$self->company( @_[0], @_[1] );
			@_[0]->purge;
		},
	}
);

$t->parsefile( "company.xml" );
$t->purge;

....

sub company {
	my ( $self, $t, $elt ) = @_;

	# Some string processing done here...
}

#===============================

My xml files was around 300MB, I found during runtime, the perl
process can grow up to 1GB.
I have put the 'purge' statement during xml node processing of node
"company", so I believe I am reading the xml file
chunk-by-chunk. So is my memory usage of 1GB normal?

The reason I ask is since my server has 8GB of memory, I am not sure
if since I have so many free memory, the Twig/Expat will
pre-allocate as much as possible for performance.

Any idea?

Thanks.
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