fast and stable

connect then ping in each iteration: 10000 iterations in   1068 msec @ 9363.295898 ops/sec
connect then ping in each iteration: 10000 iterations in    853 msec @ 11723.329102 ops/sec
connect then ping in each iteration: 10000 iterations in    753 msec @ 13280.212891 ops/sec
connect then ping in each iteration: 10000 iterations in    749 msec @ 13351.134766 ops/sec
connect then ping in each iteration: 10000 iterations in    749 msec @ 13351.134766 ops/sec
connect then ping in each iteration: 10000 iterations in    741 msec @ 13495.276367 ops/sec
connect then ping in each iteration: 10000 iterations in    742 msec @ 13477.088867 ops/sec
connect then ping in each iteration: 10000 iterations in    739 msec @ 13531.798828 ops/sec
connect then ping in each iteration: 10000 iterations in    738 msec @ 13550.135742 ops/sec
connect then ping in each iteration: 10000 iterations in    740 msec @ 13513.513672 ops/sec
connect then ping in each iteration: 10000 iterations in    740 msec @ 13513.513672 ops/sec
connect then ping in each iteration: 10000 iterations in    738 msec @ 13550.135742 ops/sec
connect then ping in each iteration: 10000 iterations in    836 msec @ 11961.722656 ops/sec
connect then ping in each iteration: 10000 iterations in    779 msec @ 12836.970703 ops/sec
connect then ping in each iteration: 10000 iterations in    743 msec @ 13458.950195 ops/sec
connect then ping in each iteration: 10000 iterations in    760 msec @ 13157.895508 ops/sec
connect then ping in each iteration: 10000 iterations in    739 msec @ 13531.798828 ops/sec
connect then ping in each iteration: 10000 iterations in    737 msec @ 13568.521484 ops/sec
connect then ping in each iteration: 10000 iterations in    745 msec @ 13422.819336 ops/sec
connect then ping in each iteration: 10000 iterations in    744 msec @ 13440.859375 ops/sec