i have a sub routine which is called for every 15 minutes using the repeat()..The problem is the memory leak..The variables which i use in the subroutine are allocated memory evry 15 minutes..The previous variable memory is not reused. Even undef the variable doesnot help.. sub auto { $var; and i do some code manipulations here.. return; } Perl Monks any solution to this problem? Thanks a million.. The sample working code is as below..Please Help 

use Tk;
$var=20;

$mw = MainWindow->new();
$mw->geometry( "240x200" );

$mw->Label(-text=>"Subroutine Memory Leak")->pack;

&startloop;
MainLoop;

sub startloop {
$iid = $mw->repeat( 1500,\&autorefresh) ;
return;
}

sub autorefresh {

$var= $var + 20;

$mw->Label(-text=>"$var",-font=>'arial 14 bold')->place(-x =>100,-y =>
+50,-anchor => 'nw');

return;
}

...

[download]
Update: Added code snippet.I tried using Strict but it doesnot Help Much 

use Tk;
use strict;
my $var=20;

my $mw = MainWindow->new();
$mw->geometry( "240x200" );

$mw->Label(-text=>"Subroutine Memory Leak")->pack;

&startloop;
MainLoop;

sub startloop {
my $iid;
$iid = $mw->repeat( 1500,\&autorefresh) ;
return;
}

sub autorefresh {

$var= $var + 20;

$mw->Label(-text=>"$var",-font=>'arial 14 bold')->place(-x =>100,-y =>
+50,-anchor => 'nw');

return;
}

[download]

In reply to Subroutine Memory Leak by gopika77

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