Hi Bruce,
to connect server and client I am using WiFi 5GHz (802.11ac), band:
20MHz with MCS (7 or 8) so I can get 65 to 78 Mbit/s. When I am testing
now, I get around 60Mbit/s for the first test and after that second test
starts and reaches around 60Mbit/s. But according to my assumptions it
should work at the same time and divide possible bandwidth (I set values
of TXOPlimit according to 802.11ac standard).
Kasper
W dniu 2018-11-19 o 21:50, Bruce A. Mah pisze:
If memory serves me right, Kasper Biegun wrote:
currently I'm working on project connected with testing UDP throughput
for different QoS values. To get the needed results I have to use Best
Effort (0x70), Background (0x28), Voice (0xc0) and Video (0xb8) traffic
at the same time. I have troubles with running them, because one stream
was waiting for another to finish or if they started - only one was
working (the rest had 0 bandwidth). Then I updated iperf to newest
version available on github and installed it. Now, for testing purposes,
I am running only Voice and Video at the same time, and I am still
getting the same issue - one transfer is waiting for the second one to
finish.
I am using commands:
- on server: #iperf3 -s -p 5015 and #iperf -s -p 5020
- on transmitter: #iperf3 -c 10.10.0.1 -p 5015 -S 192 --bind
10.10.0.2 --cport 5013 -u -b 1000m and
#iperf3 -c 10.10.0.1 -p 5020 -S 184 --bind 10.10.0.2 --cport
5018 -u -b 1000m
Server is working on Ubuntu 16.04 and transmitter is on Raspberry Pi 3.
Could you please help me with that?
Hi Kasper--
Is it possible that one test is starving the other? What is the
bandwidth on the path between your server and client?
(For what it's worth you're setting up the tests correctly by using two
independent sets of client and server.)
Bruce.
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