通过 ping 主机测量网络延迟时间
ICMP echo 数据包(或 "ping")可被用来计算一个连接的反应时间. PingTime 可用来跟踪和分析潜在的网络路由和性能问题.
Ping wolfram.com.
In[1]:=
![Click for copyable input](assets.zh/measure-network-latency-by-pinging-hosts/In_4.png)
ping = PingTime["wolfram.com"]
Out[1]=
![](assets.zh/measure-network-latency-by-pinging-hosts/O_4.png)
转换成其他单位.
In[2]:=
![Click for copyable input](assets.zh/measure-network-latency-by-pinging-hosts/In_5.png)
UnitConvert[ping, "Seconds"]
Out[2]=
![](assets.zh/measure-network-latency-by-pinging-hosts/O_5.png)
In[3]:=
![Click for copyable input](assets.zh/measure-network-latency-by-pinging-hosts/In_6.png)
UnitConvert[ping, "Minutes"]
Out[3]=
![](assets.zh/measure-network-latency-by-pinging-hosts/O_6.png)
In[4]:=
![Click for copyable input](assets.zh/measure-network-latency-by-pinging-hosts/In_7.png)
UnitConvert[ping, "Eons"]
Out[4]=
![](assets.zh/measure-network-latency-by-pinging-hosts/O_7.png)
随着时间推移用一系列 ping 周期性地对网络状况进行测试.
In[5]:=
![Click for copyable input](assets.zh/measure-network-latency-by-pinging-hosts/In_8.png)
pings = PingTime["wolfram.com", 400]
In[6]:=
![Click for copyable input](assets.zh/measure-network-latency-by-pinging-hosts/In_9.png)
Histogram[pings]
Out[6]=
![](assets.zh/measure-network-latency-by-pinging-hosts/O_8.png)