iperf命令 – 网络性能测试

iperf是一款进行网络性能测试的工具命令,由美国伊利诺斯大学研发和维护。可以用来测试一些网络设备如路由器,防火墙,交换机等的性能。

性能测试是在服务器已经启动服务的场景下进行的,服务器需先执行“iperf -s”或“iperf3 -s”命令。

语法格式:iperf [参数]

常用参数:

-l设置读写缓冲区的长度
-u使用UDP协议
-c进入客户端模式
-p设置端口,与服务器端的监听端口一致
-o重定向输出到指定文件
-b设置数据包大小(bits/sec)
-t设置传输的总时间
-v显示版本信息和编译信息并退出

参考实例

客户端向服务器发起累计10秒、每秒数据包为100M的请求:

[[email protected] ~]# iperf -c 192.168.10.10 -b 100M -t 10  
Connecting to host 192.168.10.10, port 5201  [  5] local 192.168.10.10 port 44256 connected to 192.168.10.10 port 5201  [ ID] Interval           Transfer     Bitrate         Retr  Cwnd  [  5]   0.00-1.00   sec  12.0 MBytes   101 Mbits/sec    0    639 KBytes         [  5]   1.00-2.00   sec  11.9 MBytes  99.6 Mbits/sec    0    639 KBytes         [  5]   2.00-3.00   sec  12.0 MBytes   101 Mbits/sec    0    639 KBytes         [  5]   3.00-4.00   sec  11.9 MBytes  99.7 Mbits/sec    0    639 KBytes         [  5]   4.00-5.00   sec  11.9 MBytes  99.6 Mbits/sec    0    639 KBytes         [  5]   5.00-6.00   sec  12.0 MBytes   101 Mbits/sec    0    639 KBytes         [  5]   6.00-7.00   sec  11.9 MBytes  99.6 Mbits/sec    0    639 KBytes         [  5]   7.00-8.00   sec  11.9 MBytes  99.6 Mbits/sec    0    639 KBytes         [  5]   8.00-9.00   sec  12.0 MBytes   101 Mbits/sec    0    639 KBytes         [  5]   9.00-10.00  sec  11.9 MBytes  99.6 Mbits/sec    0    639 KBytes         - - - - - - - - - - - - - - - - - - - - - - - - -  [ ID] Interval           Transfer     Bitrate         Retr  [  5]   0.00-10.00  sec   119 MBytes   100 Mbits/sec    0             sender  [  5]   0.00-10.04  sec   119 MBytes  99.7 Mbits/sec                  receiver    iperf Done. 

基于默认TCP协议,测试客户端到服务器的上传速度:

[[email protected] ~]# iperf -c 192.168.10.10 -t 10  
Connecting to host 192.168.10.10, port 5201  [  5] local 192.168.10.10 port 44326 connected to 192.168.10.10 port 5201  [ ID] Interval           Transfer     Bitrate         Retr  Cwnd  [  5]   0.00-1.00   sec  1.50 GBytes  12.8 Gbits/sec    0   1.69 MBytes         [  5]   1.00-2.00   sec  1.29 GBytes  11.1 Gbits/sec    0   2.12 MBytes         [  5]   2.00-3.00   sec  1.34 GBytes  11.5 Gbits/sec    0   2.62 MBytes         [  5]   3.00-4.00   sec  1.47 GBytes  12.7 Gbits/sec    0   3.18 MBytes         [  5]   4.00-5.00   sec  1.45 GBytes  12.5 Gbits/sec    0   3.18 MBytes         [  5]   5.00-6.00   sec  1.61 GBytes  13.9 Gbits/sec    0   3.18 MBytes         [  5]   6.00-7.00   sec  1.54 GBytes  13.2 Gbits/sec    0   3.18 MBytes         [  5]   7.00-8.00   sec  1.51 GBytes  13.0 Gbits/sec    0   3.18 MBytes         [  5]   8.00-9.00   sec  1.66 GBytes  14.2 Gbits/sec    0   3.18 MBytes         [  5]   9.00-10.00  sec  1.66 GBytes  14.2 Gbits/sec    0   3.18 MBytes         - - - - - - - - - - - - - - - - - - - - - - - - -  [ ID] Interval           Transfer     Bitrate         Retr  [  5]   0.00-10.00  sec  15.0 GBytes  12.9 Gbits/sec    0             sender  [  5]   0.00-10.03  sec  15.0 GBytes  12.9 Gbits/sec                  receiver    iperf Done. 
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