Support for QCA6174 [168c:003e]
Michael Krupp
michaelkrupp at gmx.net
Thu Oct 29 13:44:17 PDT 2015
Hello Michał,
I did some more testing with iperf, two different APs:
* TP-Link TL-WR941ND
* Speedport W 723V B
I'm using my old notebook WiFi (AR9285, ath9k) as reference here. All of the
results below are reliably repeatable, with minimal deviation. Kernel versions
do not seem to have any meaningful impact, neither does setting the TCP/CC
algorithm. The following tests were run on 4.2 using "reno".
The numbers I get look very strange to me. I tried playing around with buffer
sizes, but with no effect (http://lists.infradead.org/pipermail/ath10k/2015-October/006160.html)
I also noted, that the QCA6174 does not seem to like close proximity to the AP.
When I get any closer than about 3m to the AP, connection drops to less than
1Mbit/s average. Same result with both APs vs the QCA6174 (TCP):
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 128 KBytes 1.05 Mbits/sec
[ 3] 1.0- 2.0 sec 128 KBytes 1.05 Mbits/sec
[ 3] 2.0- 3.0 sec 0.00 Bytes 0.00 bits/sec
[ 3] 3.0- 4.0 sec 0.00 Bytes 0.00 bits/sec
[ 3] 4.0- 5.0 sec 128 KBytes 1.05 Mbits/sec
[ 3] 5.0- 6.0 sec 0.00 Bytes 0.00 bits/sec
[ 3] 6.0- 7.0 sec 384 KBytes 3.15 Mbits/sec
[ 3] 7.0- 8.0 sec 128 KBytes 1.05 Mbits/sec
[ 3] 8.0- 9.0 sec 256 KBytes 2.10 Mbits/sec
[ 3] 9.0-10.0 sec 0.00 Bytes 0.00 bits/sec
[ 3] 10.0-11.0 sec 0.00 Bytes 0.00 bits/sec
[ 3] 11.0-12.0 sec 0.00 Bytes 0.00 bits/sec
[ 3] 12.0-13.0 sec 0.00 Bytes 0.00 bits/sec
[ 3] 13.0-14.0 sec 128 KBytes 1.05 Mbits/sec
[ 3] 14.0-15.0 sec 256 KBytes 2.10 Mbits/sec
UDP traffic at first is more or less stable around 40Mbit/s, but also randomly
drops down to zero, quickly ramps up to 100M, drops again and finally
stabilizes at around 100M again (log cropped):
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 5.16 MBytes 43.3 Mbits/sec
[ 3] 1.0- 2.0 sec 4.74 MBytes 39.8 Mbits/sec
[ 3] 2.0- 3.0 sec 5.70 MBytes 47.8 Mbits/sec
[ 3] 3.0- 4.0 sec 4.59 MBytes 38.5 Mbits/sec
[ 3] 4.0- 5.0 sec 4.63 MBytes 38.8 Mbits/sec
... // seems stable at first, then drops and quickly ramps up
[ 3] 53.0-54.0 sec 4.48 MBytes 37.6 Mbits/sec
[ 3] 54.0-55.0 sec 2.67 MBytes 22.4 Mbits/sec
[ 3] 55.0-56.0 sec 294 KBytes 2.41 Mbits/sec
[ 3] 56.0-57.0 sec 2.13 MBytes 17.9 Mbits/sec
[ 3] 57.0-58.0 sec 8.09 MBytes 67.9 Mbits/sec
[ 3] 58.0-59.0 sec 12.2 MBytes 102 Mbits/sec
[ 3] 59.0-60.0 sec 13.2 MBytes 110 Mbits/sec
... // stable for a couple of seconds, then drops again
[ 3] 65.0-66.0 sec 13.2 MBytes 111 Mbits/sec
[ 3] 66.0-67.0 sec 7.11 MBytes 59.7 Mbits/sec
[ 3] 67.0-68.0 sec 4.24 MBytes 35.6 Mbits/sec
[ 3] 68.0-69.0 sec 2.30 MBytes 19.3 Mbits/sec
[ 3] 69.0-70.0 sec 3.20 MBytes 26.8 Mbits/sec
[ 3] 70.0-71.0 sec 1.93 MBytes 16.2 Mbits/sec
[ 3] 71.0-72.0 sec 1.92 MBytes 16.1 Mbits/sec
[ 3] 72.0-73.0 sec 2.80 MBytes 23.5 Mbits/sec
[ 3] 73.0-74.0 sec 4.11 MBytes 34.5 Mbits/sec
[ 3] 74.0-75.0 sec 3.11 MBytes 26.1 Mbits/sec
[ 3] 75.0-76.0 sec 2.47 MBytes 20.7 Mbits/sec
[ 3] 76.0-77.0 sec 678 KBytes 5.55 Mbits/sec
[ 3] 77.0-78.0 sec 589 KBytes 4.82 Mbits/sec
[ 3] 78.0-79.0 sec 68.9 KBytes 564 Kbits/sec
[ 3] 79.0-80.0 sec 0.00 Bytes 0.00 bits/sec
[ 3] 80.0-81.0 sec 68.9 KBytes 564 Kbits/sec
... // peaks and drops between 0 and around 580k
[ 3] 107.0-108.0 sec 138 KBytes 1.13 Mbits/sec
[ 3] 108.0-109.0 sec 586 KBytes 4.80 Mbits/sec
[ 3] 109.0-110.0 sec 597 KBytes 4.89 Mbits/sec
[ 3] 110.0-111.0 sec 350 KBytes 2.87 Mbits/sec
[ 3] 111.0-112.0 sec 212 KBytes 1.74 Mbits/sec
[ 3] 112.0-113.0 sec 741 KBytes 6.07 Mbits/sec
[ 3] 113.0-114.0 sec 1.48 MBytes 12.4 Mbits/sec
[ 3] 114.0-115.0 sec 2.19 MBytes 18.4 Mbits/sec
... // now slowly ramps up again
[ 3] 131.0-132.0 sec 5.06 MBytes 42.4 Mbits/sec
[ 3] 132.0-133.0 sec 9.00 MBytes 75.5 Mbits/sec
[ 3] 133.0-134.0 sec 10.8 MBytes 90.7 Mbits/sec
[ 3] 134.0-135.0 sec 12.8 MBytes 108 Mbits/sec
... // and stabilizes
[ 3] 169.0-170.0 sec 11.1 MBytes 93.2 Mbits/sec
[ 3] 170.0-171.0 sec 11.6 MBytes 97.3 Mbits/sec
[ 3] 171.0-172.0 sec 10.4 MBytes 87.6 Mbits/sec
[ 3] 172.0-173.0 sec 11.7 MBytes 97.9 Mbits/sec
This behavior is reproducible with both APs. Only difference is that the
W 723V B only reaches about 45Mbit/s.
My old AR9285 remains stable between 40 and 50Mbit/s, with both APs.
I'm really reaching a point here, where I do not know enough about WiFi to debug
this any further... Would more test data (maybe nstat, tcpdump, etc...) be of
any use for you or someone else to help fix this problem?
Greetings,
Michael
---
Some more TCP-tests with iperf. Parallelization (ipef -P X) does not seem to
have any effect on total average throughput. I cropped the logs for better
clarity, when there were no significant changes anymore.
1) TL-WR941ND <-> AR9285 (TCP):
It slowly ramps up and stabilizes around 45Mbit/s:
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 1.0- 2.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 3] 2.0- 3.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 3] 3.0- 4.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 4.0- 5.0 sec 2.00 MBytes 16.8 Mbits/sec
[ 3] 5.0- 6.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 6.0- 7.0 sec 1.25 MBytes 10.5 Mbits/sec
[ 3] 7.0- 8.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 3] 8.0- 9.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 3] 9.0-10.0 sec 2.25 MBytes 18.9 Mbits/sec
[ 3] 10.0-11.0 sec 2.00 MBytes 16.8 Mbits/sec
[ 3] 11.0-12.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 12.0-13.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 13.0-14.0 sec 2.88 MBytes 24.1 Mbits/sec
[ 3] 14.0-15.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 15.0-16.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 16.0-17.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 17.0-18.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 18.0-19.0 sec 2.88 MBytes 24.1 Mbits/sec
[ 3] 19.0-20.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 3] 20.0-21.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 21.0-22.0 sec 5.25 MBytes 44.0 Mbits/sec
[ 3] 22.0-23.0 sec 5.25 MBytes 44.0 Mbits/sec
[ 3] 23.0-24.0 sec 5.12 MBytes 43.0 Mbits/sec
[ 3] 24.0-25.0 sec 5.38 MBytes 45.1 Mbits/sec
[ 3] 25.0-26.0 sec 5.25 MBytes 44.0 Mbits/sec
[ 3] 26.0-27.0 sec 5.12 MBytes 43.0 Mbits/sec
[ 3] 27.0-28.0 sec 5.25 MBytes 44.0 Mbits/sec
[ 3] 28.0-29.0 sec 5.12 MBytes 43.0 Mbits/sec
[ 3] 29.0-30.0 sec 5.25 MBytes 44.0 Mbits/sec
[ 3] 30.0-31.0 sec 5.38 MBytes 45.1 Mbits/sec
...
2) TL-WR941ND <-> QCA6174 (TCP):
Connection is mostly stable around 5.2Mbit/s, but seems to randomy drop to
1.05Mbit/s.
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 1.00 MBytes 8.39 Mbits/sec
[ 3] 1.0- 2.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 2.0- 3.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 3.0- 4.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 4.0- 5.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 5.0- 6.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 6.0- 7.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 7.0- 8.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 8.0- 9.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 9.0-10.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 10.0-11.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 11.0-12.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 12.0-13.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 13.0-14.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 14.0-15.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 15.0-16.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 16.0-17.0 sec 384 KBytes 3.15 Mbits/sec
[ 3] 17.0-18.0 sec 384 KBytes 3.15 Mbits/sec
[ 3] 18.0-19.0 sec 128 KBytes 1.05 Mbits/sec
[ 3] 19.0-20.0 sec 128 KBytes 1.05 Mbits/sec
[ 3] 20.0-21.0 sec 128 KBytes 1.05 Mbits/sec
[ 3] 21.0-22.0 sec 256 KBytes 2.10 Mbits/sec
[ 3] 22.0-23.0 sec 256 KBytes 2.10 Mbits/sec
[ 3] 23.0-24.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 24.0-25.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 25.0-26.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 26.0-27.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 27.0-28.0 sec 512 KBytes 4.19 Mbits/sec
[ 3] 28.0-29.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 29.0-30.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 30.0-31.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 31.0-32.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 32.0-33.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 33.0-34.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 34.0-35.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 35.0-36.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 36.0-37.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 37.0-38.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 38.0-39.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 39.0-40.0 sec 640 KBytes 5.24 Mbits/sec
[ 3] 40.0-41.0 sec 640 KBytes 5.24 Mbits/sec
...
3) W 723V B <-> AR9285 (TCP):
Almost immediately reaches max throughput of around 35Mbit/s, then drops
repeatedly, and finally stabilizes at around 35Mbit/s:
[ 3] local 192.168.1.153 port 39623 connected with 192.168.1.2 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 3.50 MBytes 29.4 Mbits/sec
[ 3] 1.0- 2.0 sec 3.00 MBytes 25.2 Mbits/sec
[ 3] 2.0- 3.0 sec 3.12 MBytes 26.2 Mbits/sec
[ 3] 3.0- 4.0 sec 1.62 MBytes 13.6 Mbits/sec
[ 3] 4.0- 5.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 5.0- 6.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 6.0- 7.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 7.0- 8.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 3] 8.0- 9.0 sec 4.00 MBytes 33.6 Mbits/sec
[ 3] 9.0-10.0 sec 4.00 MBytes 33.6 Mbits/sec
[ 3] 10.0-11.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 11.0-12.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 12.0-13.0 sec 4.62 MBytes 38.8 Mbits/sec
[ 3] 13.0-14.0 sec 4.50 MBytes 37.7 Mbits/sec
[ 3] 14.0-15.0 sec 4.50 MBytes 37.7 Mbits/sec
[ 3] 15.0-16.0 sec 4.62 MBytes 38.8 Mbits/sec
[ 3] 16.0-17.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 17.0-18.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 18.0-19.0 sec 4.00 MBytes 33.6 Mbits/sec
[ 3] 19.0-20.0 sec 3.88 MBytes 32.5 Mbits/sec
[ 3] 20.0-21.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 21.0-22.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 22.0-23.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 23.0-24.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 24.0-25.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 25.0-26.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 26.0-27.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 27.0-28.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 28.0-29.0 sec 4.00 MBytes 33.6 Mbits/sec
[ 3] 29.0-30.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 30.0-31.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 31.0-32.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 32.0-33.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 33.0-34.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 34.0-35.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 35.0-36.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 36.0-37.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 37.0-38.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 38.0-39.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 39.0-40.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 40.0-41.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 41.0-42.0 sec 4.62 MBytes 38.8 Mbits/sec
[ 3] 42.0-43.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 43.0-44.0 sec 3.88 MBytes 32.5 Mbits/sec
[ 3] 44.0-45.0 sec 3.12 MBytes 26.2 Mbits/sec
[ 3] 45.0-46.0 sec 3.12 MBytes 26.2 Mbits/sec
[ 3] 46.0-47.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 3] 47.0-48.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 48.0-49.0 sec 3.75 MBytes 31.5 Mbits/sec
[ 3] 49.0-50.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 50.0-51.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 51.0-52.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 52.0-53.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 53.0-54.0 sec 4.00 MBytes 33.6 Mbits/sec
[ 3] 54.0-55.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 55.0-56.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 56.0-57.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 57.0-58.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 58.0-59.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 59.0-60.0 sec 4.25 MBytes 35.7 Mbits/sec
...
4) W 723V B <-> QCA6174 (TCP):
Connection seems stable at around 14Mbit/s at first, then starts jumping between
7 and 14 Mbit/s:
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 1.62 MBytes 13.6 Mbits/sec
[ 3] 1.0- 2.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 2.0- 3.0 sec 1.62 MBytes 13.6 Mbits/sec
[ 3] 3.0- 4.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 4.0- 5.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 5.0- 6.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 6.0- 7.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 7.0- 8.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 8.0- 9.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 9.0-10.0 sec 1.62 MBytes 13.6 Mbits/sec
[ 3] 10.0-11.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 11.0-12.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 12.0-13.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 13.0-14.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 14.0-15.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 15.0-16.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 16.0-17.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 17.0-18.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 18.0-19.0 sec 1.62 MBytes 13.6 Mbits/sec
[ 3] 19.0-20.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 20.0-21.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 21.0-22.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 22.0-23.0 sec 1.62 MBytes 13.6 Mbits/sec
[ 3] 23.0-24.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 24.0-25.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 25.0-26.0 sec 1.25 MBytes 10.5 Mbits/sec
[ 3] 26.0-27.0 sec 1.38 MBytes 11.5 Mbits/sec
[ 3] 27.0-28.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 28.0-29.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 29.0-30.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 30.0-31.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 31.0-32.0 sec 1.00 MBytes 8.39 Mbits/sec
[ 3] 32.0-33.0 sec 1.00 MBytes 8.39 Mbits/sec
[ 3] 33.0-34.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 34.0-35.0 sec 1.00 MBytes 8.39 Mbits/sec
[ 3] 35.0-36.0 sec 1.38 MBytes 11.5 Mbits/sec
[ 3] 36.0-37.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 37.0-38.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 38.0-39.0 sec 1.50 MBytes 12.6 Mbits/sec
[ 3] 39.0-40.0 sec 1.50 MBytes 12.6 Mbits/sec
[ 3] 40.0-41.0 sec 1.50 MBytes 12.6 Mbits/sec
[ 3] 41.0-42.0 sec 1.38 MBytes 11.5 Mbits/sec
[ 3] 42.0-43.0 sec 1.62 MBytes 13.6 Mbits/sec
[ 3] 43.0-44.0 sec 1.38 MBytes 11.5 Mbits/sec
[ 3] 44.0-45.0 sec 1.50 MBytes 12.6 Mbits/sec
[ 3] 45.0-46.0 sec 1.38 MBytes 11.5 Mbits/sec
[ 3] 46.0-47.0 sec 1.38 MBytes 11.5 Mbits/sec
[ 3] 47.0-48.0 sec 1.38 MBytes 11.5 Mbits/sec
[ 3] 48.0-49.0 sec 1.25 MBytes 10.5 Mbits/sec
[ 3] 49.0-50.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 50.0-51.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 51.0-52.0 sec 1.25 MBytes 10.5 Mbits/sec
[ 3] 52.0-53.0 sec 1.25 MBytes 10.5 Mbits/sec
[ 3] 53.0-54.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 54.0-55.0 sec 1.25 MBytes 10.5 Mbits/sec
[ 3] 55.0-56.0 sec 1.25 MBytes 10.5 Mbits/sec
[ 3] 56.0-57.0 sec 1.00 MBytes 8.39 Mbits/sec
[ 3] 57.0-58.0 sec 1.00 MBytes 8.39 Mbits/sec
[ 3] 58.0-59.0 sec 1.00 MBytes 8.39 Mbits/sec
[ 3] 59.0-60.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 60.0-61.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 61.0-62.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 62.0-63.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 63.0-64.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 64.0-65.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 65.0-66.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 66.0-67.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 67.0-68.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 68.0-69.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 69.0-70.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 70.0-71.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 71.0-72.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 72.0-73.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 73.0-74.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 74.0-75.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 75.0-76.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 76.0-77.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 77.0-78.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 78.0-79.0 sec 1.50 MBytes 12.6 Mbits/sec
[ 3] 79.0-80.0 sec 1.25 MBytes 10.5 Mbits/sec
[ 3] 80.0-81.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 81.0-82.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 82.0-83.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 83.0-84.0 sec 1.00 MBytes 8.39 Mbits/sec
[ 3] 84.0-85.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 85.0-86.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 86.0-87.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 87.0-88.0 sec 1.00 MBytes 8.39 Mbits/sec
[ 3] 88.0-89.0 sec 768 KBytes 6.29 Mbits/sec
[ 3] 89.0-90.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 90.0-91.0 sec 896 KBytes 7.34 Mbits/sec
[ 3] 91.0-92.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 92.0-93.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 93.0-94.0 sec 1.00 MBytes 8.39 Mbits/sec
[ 3] 94.0-95.0 sec 1.25 MBytes 10.5 Mbits/sec
[ 3] 95.0-96.0 sec 1.12 MBytes 9.44 Mbits/sec
[ 3] 96.0-97.0 sec 1.00 MBytes 8.39 Mbits/sec
...
On 10/27/2015 01:01 PM, Michael Krupp wrote:
> Hello Michał,
>
> thank you for pointing me to those discussions.
>
>
> I will repeat my tests using iperf to also cover UDP, and will also try some
> older kernel releases, pre-dating 3.19. Also I'll try another AP as mentioned
> earlier.
>
>
> Michael
>
> On 10/27/2015 12:27 PM, Michal Kazior wrote:
>> On 27 October 2015 at 12:22, Michael Krupp <michaelkrupp at gmx.net> wrote:
>>> Hello Michał
>>>
>>> yes, I checked the actual performance via netcat, scp and rsync. I'll report
>>> back once I have tested against another AP.
>>
>> TCP performance is known to be tricky/poor in various scenarios. There
>> were some discussions in the past:
>>
>> - http://lists.infradead.org/pipermail/ath10k/2015-October/006160.html
>> - http://thread.gmane.org/gmane.linux.network/348420
>>
>>
>> Michał
>>
>> _______________________________________________
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>> ath10k at lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/ath10k
>>
>
>
>
> _______________________________________________
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