Hello I'm doing a perl smtp sender that uses Parallel::ForkManager,Net::SMTP,MIME::Base64 and Authen::SASL and I have 30 smtp servers and send to 10 addresses simultaneously using splice.When I start the script all is fine but after some time,like 5 minutes or so,the script causes very high cpu loading even over 100%.I just want to know if there is a way around this.

My machine is "Debian GNU/Linux 4.0 \n \l" with two "model name : Genuine Intel(R) CPU 2140 @ 1.60GHz" and "2067452" RAM and my code is this :

#!/usr/bin/perl

require MIME::Base64;
require Authen::SASL;
use Net::SMTP;
use Parallel::ForkManager;

print "From address->email@domain.com: ";
$from = <>;
chomp $from;
print "From name->Name: ";
$fromname = <>;
chomp $fromname;
print "Subject->This is a test: ";
$subject = <>;
chomp $subject;
print "Mail file->mail.txt: ";
$mail = <>;
chomp $mail;
print "Addresses file->addresses.txt: ";
$addresses = <>;
chomp $addresses;
print "SMTP file->smtp.txt: ";
$smtpfile = <>;
chomp $smtpfile;
print "Max parallel SMTP->30: ";
$max = <>;
chomp $max;
print "Max addresses per SMTP->10: ";
$maxaddresses = <>;
chomp $maxaddresses;

open(MAIL, $mail);
@boday = <MAIL>;
close(MAIL);
$body = "";
foreach $pew (@boday) {
    $body.="$pew";
}
open(my $y, "<", "$smtpfile") or die "$smtpfile: $!";
my @y = <$y>;
close($y);
chomp @y;
open(INFO, $addresses);
@addresses = <INFO>;
close(INFO);
$" = ",";
chomp @addresses;
$pm = new Parallel::ForkManager($max);
foreach $target (@addresses) {
chomp $target;
@tenaddresses = splice(@addresses, 0, $maxaddresses);
$index_y++;
$index_y = 0 if($index_y > $#y);
my $pid = $pm->start and next;
    my $value = "$_$y[$index_y]";
    @info = split(/ /, $value);
    $server = $info[0];
    $username = $info[1];
    $pass = $info[2];
    print "[+] Sending with $server to @tenaddresses | ";
    $connection = Net::SMTP->new($server,
        Timeout => 10,
        Debug => 0,
      );
    if (!defined($connection) || !($connection)) {
        print ("Error at connecting. Skipping.\n");
    } else {
        $connection->auth($username, $pass);
        $connection->mail($from);
        $connection->recipient(@tenaddresses);
        $connection->data;
        $connection->datasend("From: $fromname <$from>\r\n");
        $connection->datasend("Content-Type: text/html \r\n");
        $connection->datasend("Subject: $subject\r\n");
        $connection->datasend("\r\n");
        $connection->datasend("$body\r\n");
        $connection->datasend("\r\n");
        $connection->dataend();
        $connection->quit;
        print ("Done.\n");
    }
$pm->finish;
}
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