# rss is in KB but ixrss is in BYTES.
# This is true on at least FreeBSD, OpenBSD, & NetBSD - Phil Gollucci
sub _bsd_size_check {
    my @results = BSD::Resource::getrusage();
    my $max_rss   = $results[2];
    my $max_ixrss = int ( $results[3] / 1024 );

    return ( $max_rss, $max_ixrss );
}