time (for i in `seq 1 1000`; do dig google.com @8.8.8.8 > /dev/null 2>>/dev/null; done)

time (for i in `seq 1 1000`; do dig google.com @217.237.148.70 > /dev/null 2>>/dev/null; done)

time (for i in `seq 1 1000`; do dig google.com @127.0.0.1 > /dev/null 2>>/dev/null; done)