4、这是测量echo过程的响应时间的有效方法。按照最简单的形式,可以向一个主机发送echo请求并查明响应时间(见清单1)。清单1.使用ping判断延时$ ping example PING example.example.pri (192.168.0.2): 56 data bnd-trip min/avg/max/stddev = 0.167/0.168/0.169/0.001 ms 需要使用Control-C停止ping过程。在Solaris和AIX®上,需要使用-s选项发送多个echo数据包并获得
5、计时信息。为了获得基线数据,可以使用-c选项(在Linux®上)指定数量。在Solaris/AIX上,可以指定数据包大小(默认大小为56字节)和要发送的数据包数量,这样就不必手工终止ping过程。然后可以自动地获得计时信息(见清单2)。清单2.在Solaris/AIX上使用ping时指定数据包大小$ ping -s example 56 10 PING example: 56 data bytes 64 bytes from example.example.pri (192.168.0.2): icmp_
6、seq=0. time=0.143 ms 64 bytes from example.example.pri (192.168.0.2): icmp_seq=1. time=0.163 ms 64 bytes from example.example.pri (192.168.0.2): icmp_seq=2. time=0.146 ms 64 bytes from example.example.pri (192.168.0.2): icmp_seq=3. time=0.134 ms 64 123456下一页—
7、—感谢阅读这篇文章,..,bytes from example.example.pri (192.168.0.2): icmp_seq=4. time=0.151 ms 64 bytes from example.example.pri (192.168.0.2): icmp_seq=5. time=0.107 ms 64 bytes from example.example.pri (192.168.0.2): icmp_seq=6. time=0.142 ms 64 bytes from example.ex
8、ample.pri (192.168.0.2): icmp_seq=7. time=0.136 ms 64 bytes from example.example.pri (192.168.0.2): icmp_seq=8. time=0.143 ms 64 bytes from example.example.pri (192.168.0.2): icmp_seq=9.