13.4. lwip_iperf
13.4.1. 概述
本示例通过iperf (https://iperf.fr/iperf-download.php) 测试TCP/UDP吞吐性能，共有如下四种模式：
MCU用作TCP服务端 / PC用作TCP客户端
MCU用作TCP客户端 / PC用作TCP服务端
MCU用作UDP服务端 / PC用作UDP客户端
MCU用作UDP客户端 / PC用作UDP服务端
13.4.2. 硬件设置
使用USB Type-C线缆连接PC USB端口和PWR DEBUG端口
使用以太网线缆连接PC以太网端口和开发板RGMII或RMII端口
13.4.3. 工程配置
以太网端口配置：参考 以太网通用工程设置
以太网DHCP配置
lwIP sample: 在
CMakeLists.txt中，支持如下配置:sdk_compile_definitions(-DLWIP_DHCP=0): 禁用DHCP功能
sdk_compile_definitions(-DLWIP_DHCP=1): 启用DHCP功能
13.4.4. 运行示例
编译下载程序
串口终端显示如下信息：
This is an ethernet demo: Iperf LwIP Version: 2.1.2 Enet phy init passed ! Link Status: Up Link Speed: 1000Mbps Link Duplex: Full duplex IPv4 Address: 192.168.100.10 IPv4 Netmask: 255.255.255.0 IPv4 Gateway: 192.168.100.1 1: TCP Server Mode 2: TCP Client Mode 3: UDP Server Mode 4: UDP Client Mode Please enter one of modes above (e.g. 1 or 2 ...):
选择测试模式并运行iperf
TCP服务端模式
按开发板“RESETN”键，并等待提示
1: TCP Server Mode 2: TCP Client Mode 3: UDP Server Mode 4: UDP Client Mode Please enter one of modes above (e.g. 1 or 2 ...):
在串口终端输入测试模式的代号
Please enter one of modes above (e.g. 1 or 2 ...): 1在命令行中运行iperf
iperf -c 192.168.100.10 -i 1观察结果
------------------------------------------------------------ Client connecting to 192.168.100.10, TCP port 5001 TCP window size: 64.0 KByte (default) ------------------------------------------------------------ [336] local 192.168.100.5 port 56608 connected with 192.168.100.10 port 5001 [ ID] Interval Transfer Bandwidth [336] 0.0- 1.0 sec 11.3 MBytes 95.0 Mbits/sec [336] 1.0- 2.0 sec 11.3 MBytes 94.5 Mbits/sec [336] 2.0- 3.0 sec 11.2 MBytes 94.3 Mbits/sec [336] 3.0- 4.0 sec 11.3 MBytes 94.4 Mbits/sec [336] 4.0- 5.0 sec 11.3 MBytes 94.4 Mbits/sec [336] 5.0- 6.0 sec 11.3 MBytes 94.6 Mbits/sec [336] 6.0- 7.0 sec 11.3 MBytes 94.4 Mbits/sec [336] 7.0- 8.0 sec 11.3 MBytes 94.5 Mbits/sec [336] 8.0- 9.0 sec 11.3 MBytes 94.4 Mbits/sec [336] 9.0-10.0 sec 11.3 MBytes 94.5 Mbits/sec [336] 0.0-10.0 sec 113 MBytes 94.4 Mbits/sec
TCP客户端模式
按开发板“RESETN”键，并等待提示
1: TCP Server Mode 2: TCP Client Mode 3: UDP Server Mode 4: UDP Client Mode Please enter one of modes above (e.g. 1 or 2 ...):
在命令行中运行iperf
iperf -s -i 1在串口终端输入测试模式的代号
Please enter one of modes above (e.g. 1 or 2 ...): 2观察结果
------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 64.0 KByte (default) ------------------------------------------------------------ [388] local 192.168.100.5 port 5001 connected with 192.168.100.10 port 49153 [ ID] Interval Transfer Bandwidth [388] 0.0- 1.0 sec 10.6 MBytes 89.2 Mbits/sec [388] 1.0- 2.0 sec 11.2 MBytes 94.2 Mbits/sec [388] 2.0- 3.0 sec 11.2 MBytes 94.1 Mbits/sec [388] 3.0- 4.0 sec 11.2 MBytes 94.1 Mbits/sec [388] 4.0- 5.0 sec 11.2 MBytes 94.2 Mbits/sec [388] 5.0- 6.0 sec 11.2 MBytes 94.1 Mbits/sec [388] 6.0- 7.0 sec 11.2 MBytes 94.1 Mbits/sec [388] 7.0- 8.0 sec 11.2 MBytes 94.1 Mbits/sec [388] 8.0- 9.0 sec 11.2 MBytes 94.1 Mbits/sec [388] 9.0-10.0 sec 11.2 MBytes 94.1 Mbits/sec [388] 0.0-10.0 sec 112 MBytes 93.6 Mbits/sec
UDP服务端模式
按开发板“RESETN”键，并等待提示
1: TCP Server Mode 2: TCP Client Mode 3: UDP Server Mode 4: UDP Client Mode Please enter one of modes above (e.g. 1 or 2 ...):
在串口终端输入测试模式的代号
Please enter one of modes above (e.g. 1 or 2 ...): 3在命令行中运行iperf
iperf -u -c 192.168.100.10 -i 1 -b 100M注：如果选择的是RGMII网口，最大带宽能设置为1000M
观察结果
------------------------------------------------------------ Client connecting to 192.168.100.10, UDP port 5001 Sending 1470 byte datagrams UDP buffer size: 64.0 KByte (default) ------------------------------------------------------------ [336] local 192.168.100.5 port 60607 connected with 192.168.100.10 port 5001 [ ID] Interval Transfer Bandwidth [336] 0.0- 1.0 sec 11.5 MBytes 96.3 Mbits/sec [336] 1.0- 2.0 sec 11.4 MBytes 95.7 Mbits/sec [336] 2.0- 3.0 sec 11.4 MBytes 95.7 Mbits/sec [336] 3.0- 4.0 sec 11.4 MBytes 95.7 Mbits/sec [336] 4.0- 5.0 sec 11.4 MBytes 95.7 Mbits/sec [336] 5.0- 6.0 sec 11.4 MBytes 95.7 Mbits/sec [336] 6.0- 7.0 sec 11.4 MBytes 95.7 Mbits/sec [336] 7.0- 8.0 sec 11.4 MBytes 95.7 Mbits/sec [336] 8.0- 9.0 sec 11.4 MBytes 95.7 Mbits/sec [336] 9.0-10.0 sec 11.4 MBytes 95.6 Mbits/sec [336] 0.0-10.0 sec 114 MBytes 95.8 Mbits/sec [336] Server Report: [336] 0.0-10.0 sec 114 MBytes 95.7 Mbits/sec 0.007 ms 0/81430 (0%) [336] Sent 81432 datagrams
UDP客户端模式
按开发板“RESETN”键，并等待提示
1: TCP Server Mode 2: TCP Client Mode 3: UDP Server Mode 4: UDP Client Mode Please enter one of modes above (e.g. 1 or 2 ...):
在命令行中运行iperf
iperf -u -s -i 1在串口终端输入测试模式的代号
Please enter one of modes above (e.g. 1 or 2 ...): 4观察结果
------------------------------------------------------------ Server listening on UDP port 5001 Receiving 1470 byte datagrams UDP buffer size: 64.0 KByte (default) ------------------------------------------------------------ [ 3] local 192.168.100.5 port 5001 connected with 192.168.100.10 port 49153 [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 3] 0.0- 1.0 sec 11.3 MBytes 94.6 Mbits/sec 0.208 ms 137/ 8183 (1.7%) [ 3] 0.00-1.00 sec 6033 datagrams received out-of-order [ 3] 1.0- 2.0 sec 11.2 MBytes 94.1 Mbits/sec 0.203 ms 0/ 8000 (0%) [ 3] 1.00-2.00 sec 6000 datagrams received out-of-order [ 3] 2.0- 3.0 sec 11.2 MBytes 94.1 Mbits/sec 0.208 ms 0/ 8000 (0%) [ 3] 2.00-3.00 sec 6000 datagrams received out-of-order [ 3] 3.0- 4.0 sec 11.2 MBytes 94.1 Mbits/sec 0.207 ms 0/ 8000 (0%) [ 3] 3.00-4.00 sec 6000 datagrams received out-of-order [ 3] 4.0- 5.0 sec 11.2 MBytes 94.1 Mbits/sec 0.208 ms 0/ 8000 (0%) [ 3] 4.00-5.00 sec 6000 datagrams received out-of-orderS [ 3] 5.0- 6.0 sec 11.2 MBytes 94.1 Mbits/sec 0.207 ms 0/ 8000 (0%) [ 3] 5.00-6.00 sec 6000 datagrams received out-of-order [ 3] 6.0- 7.0 sec 11.2 MBytes 94.1 Mbits/sec 0.208 ms 0/ 8000 (0%) [ 3] 6.00-7.00 sec 6000 datagrams received out-of-order [ 3] 7.0- 8.0 sec 11.2 MBytes 94.1 Mbits/sec 0.209 ms 0/ 8000 (0%) [ 3] 7.00-8.00 sec 6000 datagrams received out-of-order [ 3] 8.0- 9.0 sec 11.2 MBytes 94.1 Mbits/sec 0.206 ms 0/ 8000 (0%) [ 3] 8.00-9.00 sec 6000 datagrams received out-of-order [ 3] 0.0-10.0 sec 112 MBytes 94.1 Mbits/sec 0.234 ms 135/79952 (0.17%) [ 3] 0.00-9.97 sec 59861 datagrams received out-of-order
异常退出
按空格键退出测试，然后重新选择测试模式