Comment 7 for bug 1932548

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Kai-Chuan Hsieh (kchsieh) wrote (last edit ):

@skidooman

1. the ucode should be in /lib/firmware, please check kernel log, if the latest firmware is loaded
$ journalctl -k | grep "loaded firmware version"

2. the iperf test for local area network performance, you need such scenario
your PC (with problem) <-Wireless-> Access Point <-Ethernet-> Any PC (testbed)

Install iperf3 on both side PC $ sudo apt install iperf3
For testing Tx, run client command on your PC and server command on test bed.
For testing Rx, run server command on your PC and client command on test bed.

server command: $ iperf -s -i 1
client command: $ iperf -c <server ip> -t 100 -i 1

i: the interval to show statistics
t: the time to perform the test

you can monitor the throughput instantly on client side. the key point is the rate should comply your Wi-Fi selected modulation and stable.

For example, you can see the bit rate by running $ iwconfig, the throughput roughly should be the half of the theoretical rate, which is the bit rate you are using now, sometimes it may constraint by the bus speed, but that's the other story. I think the most important part for video conference is stability, you can focus on that.