iPerf results with AC86U 5ghz

[Carnagerover]

Hi all,

Any reason when testing from my iPad using iperf that I get the following;

Connecting to host 192.168.1.171, port 5201

[ 8] local 192.168.1.33 port 60274 connected to 192.168.1.171 port 5201

[ ID] Interval Transfer Bandwidth

[ 8] 0.00-1.00 sec 3.76 MBytes 31.5 Mbits/sec

[ 8] 1.00-2.00 sec 3.65 MBytes 30.6 Mbits/sec

[ 8] 2.00-3.00 sec 6.27 MBytes 52.6 Mbits/sec

[ 8] 3.00-4.00 sec 5.62 MBytes 47.2 Mbits/sec

[ 8] 4.00-5.00 sec 5.74 MBytes 48.1 Mbits/sec

[ 8] 5.00-6.00 sec 6.10 MBytes 51.2 Mbits/sec

[ 8] 6.00-7.00 sec 5.18 MBytes 43.5 Mbits/sec

[ 8] 7.00-8.00 sec 6.44 MBytes 54.0 Mbits/sec

[ 8] 8.00-9.00 sec 5.93 MBytes 49.7 Mbits/sec

[ 8] 9.00-10.00 sec 3.27 MBytes 27.4 Mbits/sec

- - - - - - - - - - - - - - - - - - - - - - - - -

[ ID] Interval Transfer Bandwidth

[ 8] 0.00-10.00 sec 52.0 MBytes 43.6 Mbits/sec sender

[ 8] 0.00-10.00 sec 51.8 MBytes 43.5 Mbits/sec receiver


iperf Done.

[Process completed]

Why is it so low, the iPad is connected at 866.7 Mbps as is in the same room as the router, I am running a iPerf3 server on my wired gigabit machine and connecting the iPad Pro Gen 2 as the client?

Am I doing something wrong?

 

[ApexRon]

WiFi is a shared medium. Your test is interesting but doesn't take into account other WiFi activity. Additionally, there are other influencers such as the iPad itself. Today's IOS is multitasking as is the ASUS router itself. I don't believe you are doing anything wrong.

 

[EmeraldDeer]

Are the results better if you append "-w 1M" to the iperf command?

 

[Carnagerover]

WiFi is a shared medium. Your test is interesting but doesn't take into account other WiFi activity. Additionally, there are other influencers such as the iPad itself. Today's IOS is multitasking as is the ASUS router itself. I don't believe you are doing anything wrong.

There was no other devices connected to the 5ghz and the channel is 104 with no other networks overlapping.

Are the results better if you append "-w 1M" to the iperf command?

I tried that and it finished at 45Mbits, I would image this iPad should do at least 400Mbits being connected at 866 but it doesn’t get anywhere near.

 

[EmeraldDeer]

I tried that and it finished at 45Mbits, I would image this iPad should do at least 400Mbits being connected at 866 but it doesn’t get anywhere near.

Below is my Hurricane Electric iperf 3 results from a Gen 1 iPad Pro at 866 Mbps 80 MHz Channel 52 to a 1 Gigabit Ethernet connected laptop running IPerf 3.1.3 win64.
Forward

IPerf results for host 192.168.50.200:5201 (TCP)

[16]  0.0- 1.0 sec 44564480 bytes 346.23 Mbits/s
[16]  1.0- 2.0 sec 62914560 bytes 504.10 Mbits/s
[16]  2.0- 3.0 sec 61603840 bytes 493.14 Mbits/s
[16]  3.0- 4.0 sec 62914560 bytes 500.59 Mbits/s
[16]  4.0- 5.0 sec 38010880 bytes 301.06 Mbits/s
[16]  5.0- 6.0 sec 61603840 bytes 501.84 Mbits/s
[16]  6.0- 7.0 sec 62914560 bytes 499.31 Mbits/s
[16]  7.0- 8.0 sec 61603840 bytes 498.34 Mbits/s
[16]  8.0- 9.0 sec 60293120 bytes 483.59 Mbits/s
[16]  9.0-10.0 sec 61603840 bytes 490.57 Mbits/s

Reverse

IPerf results for host 192.168.50.200:5201 (TCP)

[17]  0.0- 1.0 sec 31981568 bytes 255.83 Mbits/s
[17]  1.0- 2.0 sec 32112640 bytes 255.77 Mbits/s
[17]  2.0- 3.1 sec 20185088 bytes 153.19 Mbits/s
[17]  3.1- 4.0 sec 29229056 bytes 248.22 Mbits/s
[17]  4.0- 5.0 sec 32112640 bytes 255.73 Mbits/s
[17]  5.0- 6.0 sec 31195136 bytes 249.15 Mbits/s
[17]  6.0- 7.0 sec 31719424 bytes 254.58 Mbits/s
[17]  7.0- 8.0 sec 30801920 bytes 246.17 Mbits/s
[17]  8.0- 9.0 sec 31719424 bytes 254.56 Mbits/s
[17]  9.0-10.0 sec 31981568 bytes 256.12 Mbits/s

 

[Carnagerover]

Figured it out and it was user error on my part, I forgot a while ago that I had setup link aggregation on my NAS, which I have recently moved, I forgot to turn off the LAG that was setup so two ports on the switch were connecting at 100Mbps instead of gigabit. Thanks anyway guys

Now I can finally do some testing between the AC86U and X4S and get normal numbers on iPerf.