C:\>ping www.yahoo.co.jp

Pinging www.yahoo.co.jp [210.81.150.166] with 32 bytes of data:

Reply from 210.81.150.166: bytes=32 time=9ms TTL=52
Reply from 210.81.150.166: bytes=32 time=10ms TTL=52
Reply from 210.81.150.166: bytes=32 time=8ms TTL=52
Reply from 210.81.150.166: bytes=32 time=8ms TTL=52

Ping statistics for 210.81.150.166:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 8ms, Maximum = 10ms, Average = 8ms

速いね。
おれネトゲやらんからあまり意味無いけど。
ちなみに線長3km超え。環境いい奴はもっと速いかも。
まあu-senが最速だろうけど。