ping值查看!

新人来的..刚建好自己的博客..测试了一下ping值,但不太会看,前辈说20-200是正常.
是如何衡量呢

ping的数据

PING http://xxxx.com/ (xxxx): 56 data bytes
64 bytes from 121.10.40.146: icmp_seq=0 ttl=58 time=19.760 ms
64 bytes from 121.10.40.146: icmp_seq=1 ttl=58 time=19.708 ms
64 bytes from 121.10.40.146: icmp_seq=2 ttl=58 time=19.911 ms
64 bytes from 121.10.40.146: icmp_seq=3 ttl=58 time=19.390 ms
Request timeout for icmp_seq 4
64 bytes from 121.10.40.146: icmp_seq=5 ttl=58 time=25.074 ms
64 bytes from 121.10.40.146: icmp_seq=6 ttl=58 time=20.488 ms
64 bytes from 121.10.40.146: icmp_seq=7 ttl=58 time=19.430 ms
64 bytes from 121.10.40.146: icmp_seq=8 ttl=58 time=22.000 ms
64 bytes from 121.10.40.146: icmp_seq=9 ttl=58 time=23.389 ms

--- http://xxx.com/ ping statistics ---
10 packets transmitted, 9 packets received, 10.0% packet loss
round-trip min/avg/max/stddev = 19.390/21.017/25.074/1.915 ms