Glad to see that you're feeling chipper! I like your MAC analogy; however, I'd choose a MAC over a shopping trolley any time:-).

I recommended POE::Component::Client::NTP because it's a better fit with my system, and because it doesn't look for Socket6---it fails tests for me. To get around that, I started using POE::Component::Client::NTP.

As for which one is the closest to spot-on, I ran some simple timing tests. Hmmm...the jury is still out on that one.

Net::NTP

#!/usr/bin/perl 

use strict;
use warnings;
use Time::AutoRes qw/time/;
use Data::Dumper::Concise;
use Net::NTP qw/get_ntp_response/;

my $host = 'pool.ntp.org';

print Dumper(my $start = time);
my %response = get_ntp_response($host);
print Dumper( %response ), "\n";
print Dumper(my $end = time);
print Dumper(my $elapsed_time = ($end - $start));
[download]

POE::Component::Client::NTP

#!/usr/bin/perl 

use strict;
use warnings;
use Time::AutoRes qw/time/;
use Data::Dumper::Concise;
use Net::NTP qw/get_ntp_response/;
use POE qw/Component::Client::NTP/;

my $host = 'pool.ntp.org';

print Dumper(my $start = time);

POE::Session->create(
  package_states => [
     main => [qw(_start _stop _response)],
    ],
);

$poe_kernel->run();

print Dumper(my $end = time);
print Dumper(my $elapsed_time = ($end - $start));
exit 0;

sub _start {
  POE::Component::Client::NTP->get_ntp_response(
     host => $host,
     event => '_response',
     context => 'word',
  ) or die "Couldn't connect to server: $!";
  return;
}

sub _stop {
    print "Refcount was decremented";
}

sub _response {
    my $packet = $_[ARG0];
    print Dumper( $packet );
}
[download]

I got mixed results, but if I use my system time, Net::NTP is consistently faster.

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