test/throughput

The test/throughput application allows testing of throughput for a variety of configurations:

A device can be configured as a client or a server. For bi-directional tests, a device can be set up as both a server and client.

App Commands

The app creates two new commands:

throughput_start

Abbreviation

tstart

Description

Start a client or server for throughput testing.

Syntax 

throughput_start <type> -p <port> -i <interval> [-ip <ip_address>] -t <duration> [<protocol>]

where:

Examples

Start a UDP server listening on port 8000 , posting results every second, running for 30 seconds: 

throughput_start -s -p 8000 -i 1 -t 30

Start a client TCP connection to IP address 192.168.0.1 , port 50000 , posting results every 500 ms, and running for 60 seconds: 

throughput_start -c -ip 192.168.0.1 -p 50000 -t 60 -i 0.5

throughput_result

Abbreviation

tresult

Description

Poll the results of a throughput test of client or server type.

Returns a string of the form: 

[<type>][<interval_time>] sent/received: <kb> Kbytes, Bandwidth: <bits/second>

e.g. 

[c][0.97] sent: 17 Kbytes, Bandwidth: 148291.87

Syntax 

throughput_result <type>

where:

Examples

Poll the data for a server throughput test: 

throughput_result -s

Device Configuration

To set the interface, use the network.default_interface variable, e.g. 

set network.default_interface wlan

The protocol and client or server type are set with the app throughput_start command.

Testing Script

The script throughput.py is provided for either manual or automated testing of the throughput app.

Run the throughput.py on a computer connected to the same network as the Gecko OS test device. When the test device runs as a server type, the test computer polls as a client type.

Command Line

On the command line, run throughput.py with the same arguments documented above for the throughput_start command, e.g.

server: 

python throughput.py -s -p 8000 -i 1 -t 30

client: 

python throughput.py -c -ip 192.168.0.1 -p 8000 -t 30 -i 1

Python Script

You can import from the throughput module to automate testing:

server: 

from throughput import throughput_start
...
server = throughput_start("-s", test_machine_ip, test_port, interval, duration, proto)
...

client: 

from throughput import throughput_start
...
client = throughput_start("-c", dut_ip, test_port, interval, duration, proto)
...

Example Operation

WLAN - Gecko OS Device Server

On Gecko OS Terminal:

<ssid> : the SSID of the network to which the Gecko OS Device and the test computer are connected. <passkey> : the passkey of the network 

set wlan.ssid <ssid>
set wlan.passkey <passkey>
set network.default_interface wlan
save

throughput_start -s -p 8000 -i 1 -t 4

At test computer command prompt:

<DUT_IP> - the IP address of the Gecko OS Device. 

python throughput.py -c -ip <DUT_IP> -p 8000 -t 4 -i 1

The Gecko OS terminal output is similar to the following: 

TCP client connected
Server thread started.

[s][0.00 - 1.00] total_received: 98 KBytes, Bandwidth: 810624.00
[s][1.00 - 2.00] total_received: 122 KBytes, Bandwidth: 1001688.00
[s][2.00 - 3.00] total_received: 113 KBytes, Bandwidth: 929776.00
[s][3.00 - 4.00] total_received: 212 KBytes, Bandwidth: 1742496.00
TCP client disconnected
[2019-11-20 | 00:42:20: Closed: 1]
TCP server stopped

The test computer python script output is similar to the following: 

Throughput is connecting ('DUT_IP', 8000)

[c][0.0 - 1.0] total: 157 KBytes, bandwidth: 1.2 Mbits/sec
[c][1.0 - 2.0] total: 122 KBytes, bandwidth: 978.5 kbits/sec
[c][2.0 - 3.0] total: 113 KBytes, bandwidth: 908.1 kbits/sec
[c][3.0 - 4.0] total: 213 KBytes, bandwidth: 1.7 Mbits/sec

WLAN - Gecko OS Device Client

On Gecko OS Terminal: 

throughput_start -c -ip TEST_MACHINE_IP -p 8000 -t 3 -i 1

interval = 1000
In progress
Resolving host: TEST_MACHINE_IP
LOCAL> Connecting (TCP): TEST_MACHINE_IP:8000
Meter TCP client is connected to a receiver. Start sending data

[c][0.00 - 1.00] total_sent: 19 Kbytes, Bandwidth: 160320.00
[c][1.00 - 2.00] total_sent: 19 Kbytes, Bandwidth: 160320.00
[c][2.00 - 3.00] total_sent: 21 Kbytes, Bandwidth: 176352.00
timer event
Client transfer is completed.

At test computer command prompt: 

python throughput.py -s -p 8000 -i 1 -t 3
Throughput is connecting ('', 8000)
TCP server is listening on ('', 8000)

[s][0.0 - 1.0] total: 18 KBytes, bandwidth: 148.7 kbits/sec
[s][1.0 - 2.0] total: 19 KBytes, bandwidth: 156.6 kbits/sec
[s][2.0 - 3.0] total: 21 KBytes, bandwidth: 172.2 kbits/sec

Source Files