sub parallel_execute {
    my $this = shift;
    foreach my $a (@a_array) {
        my $pid = $this->{fork_manager}->start and next;
        my $res = $a->passes_thresholds();
        $a->{timer} = Benchmark::Timer->new();
        $svc->{timer}->start;
        $this->{fork_manager}->finish(0,{a => $a, plugin_result => $res});
    }
}

$this->{fork_manager}->run_on_finish( sub {
    my ($pid, $exit_code, $ident, $exit_signal, $core_dump, $data_structure_reference) = @_;
    my $a = $data_structure_reference->{a};
    if (exists $a->{timer}) {
        $a->{timer}->stop;
        debug "took: " . $a->{timer}->report;
    }
});