OVMS3-idf/examples/wifi/iperf/README.md
Liu Zhi Fu 05b0d567e5 example: add iperf example
Support iperf
2017-09-26 09:19:01 +08:00

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# Iperf Example
This example implements the protocol used by the common performance measurement tool [iPerf](https://iperf.fr/).
Performance can be measured between two ESP32s running this example, or between a single ESP32 and a computer running the iPerf tool
Demo steps to test station TCP Tx performance:
1. Build the iperf example with sdkconfig.defaults, which contains performance test specific configurations
2. Run the demo as station mode and join the target AP
sta ssid password
3. Run iperf as server on AP side
iperf -s -i 3
4. Run iperf as client on ESP32 side
iperf -c 192.168.10.42 -i 3 -t 60
The console output, which is printed by station TCP RX throughput test, looks like:
>esp32> sta aptest
>
>I (5325) iperf: sta connecting to 'aptest'
>
>esp32> I (6017) event: ip: 192.168.10.248, mask: 255.255.255.0, gw: 192.168.10.1
>
>esp32> iperf -s -i 3 -t 1000
>
>I (14958) iperf: mode=tcp-server sip=192.168.10.248:5001, dip=0.0.0.0:5001, interval=3, time=1000
>
>Interval Bandwidth
>
>esp32> accept: 192.168.10.42,62958
>
>0- 3 sec 8.43 Mbits/sec
>
>3- 6 sec 36.16 Mbits/sec
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>6- 9 sec 36.22 Mbits/sec
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>9- 12 sec 36.44 Mbits/sec
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>12- 15 sec 36.25 Mbits/sec
>
>15- 18 sec 24.36 Mbits/sec
>
>18- 21 sec 27.79 Mbits/sec
Steps to test station/soft-AP TCP/UDP RX/TX throughput are similar as test steps in station TCP TX.
See the README.md file in the upper level 'examples' directory for more information about examples.