Never mind... I found the answer by playing with it. It seems you have to loop thru it a few times for the memory to settle down to a constant value, and since I was using 2 hashes, Perl let it double. However, the following does reclaim memory like I would expect. 
#!/usr/bin/perl
use warnings;
use strict;

my %bubs;

while(1){
for(1.. 500){
  $bubs{$_} = ZtkBubject->new(
                 -name => $_,
          );
 $bubs{$_}=();
 delete $bubs{$_};
}

%bubs = ();
undef %bubs;
print "\nCheck memory now and hit enter\n";
<>;

}

#=====================================================================
+======== 
#                ZtkBubject  Class 
#=====================================================================
+======== 
package ZtkBubject;
use strict 'vars';
use Carp;

sub new {
    my ($class, %arg) = @_;

        my $self = {
          'name'  => $arg{-name},
       };
bless $self;
#    print "just blessed $self\n"; 
    $self->{stuff} = [1..1000]; #add some memory usage  
return $self;
}
############################################# 
sub DESTROY{
  my ($self) = @_;
   print "destroying->", $self->{name},'  ',$self,"\n";
}
########################################### 
1;

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I'm not really a human, but I play one on earth. flash japh

In reply to Re: Is there a penalty for namespace use? by zentara
in thread Is there a penalty for namespace use? by zentara

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