6850

My AX210 arrived, iperf3 did 1.64 Gbits Rx or Tx with AX3600.
This time I used Robi build and loaded htop, iperf3 and others via LUCI gui.

Router is using AX 5Ghz chan100@160Mhz, during tests:
2401.9 Mbit/s, 160 MHz, HE-MCS 11, HE-NSS 2
2401.9 Mbit/s, 160 MHz, HE-MCS 11, HE-NSS 2
QCA9887 802.11nac is disable, as I don't use it.

There are other 2 networks in chan 100, but their signal is very low.
chan36 has more networks here, with higher signals, but also got good speed ~1.2 Gbits.

Test #1: laptop sends to router
Client in router: iperf3 -c 192.168.0.204 -t 30 -R -P 2

Server in laptop: [SUM] 0.00-30.00 sec 5.71 GBytes 1.64 Gbits/sec 0 sender

    0[||||||||||||||||||  54.5% 1017MHz] Tasks: 24, 0 thr, 80 kthr; 3 running
    1[|||||||||||||||     43.6% 1017MHz] Load average: 0.76 0.63 0.38 
    2[||||||||||||||||||||62.0% 1017MHz] Uptime: 03:24:02
    3[||||||||||          28.6% 1017MHz] Mem[||||||||||||||||        145M/408M]
  Avg[||||||||||||||||    47.0% 1017MHz] Swp[                            0K/0K]

  PID USER       PRI  NI  VIRT   RES   SHR S CPU%-MEM%   TIME+  Command
 1180 root        20   0     0     0     0 S 65.3  0.0  4:36.18 napi/-16
 1181 root        20   0     0     0     0 S 60.4  0.0  5:15.23 napi/-17
18920 root        20   0  1228   968   704 S 49.5  0.2  0:06.07 iperf3 -c 192.16
 1170 root        20   0     0     0     0 S  5.0  0.0  4:22.43 napi/-7
 1175 root        20   0     0     0     0 S  2.0  0.0  0:47.28 napi/-11
  371 root        RT   0     0     0     0 S  1.0  0.0  0:10.05 sugov:0
 1171 root        20   0     0     0     0 S  1.0  0.0  1:41.16 napi/-8
18818 root        20   0     0     0     0 I  1.0  0.0  0:00.34 kworker/u8:0-eve
18890 root        20   0  1912  1572  1080 R  1.0  0.4  0:12.10 htop

Test#2: router sends to laptop
Note:
When router sends data and laptop receives, single threaded iperf3 gets bottlenecked by 1 core load in router, so I runned 2 servers in laptop for this test.
In real life iperf3 won't be running neither using cpu.
Objective was only to measure max Wifi speed.

Started 2 servers in the laptop:
iperf3 -s -p 5201 -f m
iperf3 -s -p 5202 -f m

Running 2 clients in router:
iperf3 -c 192.168.0.204 -t 30 -p 5201 </dev/null &>/dev/null & iperf3 -c 192.168.0.204 -t 30 -p 5202 </dev/null &>/dev/null &
(the load is well balanced in this test run, in some other runs it wasn't, but objective is only measure max wifi speed)

Server 5201:
[ ID] Interval Transfer Bitrate
[ 5] 0.00-30.00 sec 2.90 GBytes 831 Mbits/sec receiver

Server 5202:
[ ID] Interval Transfer Bitrate
[ 5] 0.00-30.01 sec 2.84 GBytes 814 Mbits/sec receiver

Total speed = 831 + 814 = 1.645 Gbits/s

    0[||||||||||||||||||||68.7% 1382MHz] Tasks: 25, 0 thr, 80 kthr; 3 running
    1[||||||||||||||||||  52.5% 1382MHz] Load average: 0.98 0.30 0.16 
    2[||||||||||||||||||||63.6% 1382MHz] Uptime: 03:16:32
    3[||||||||||||||||||||57.8% 1382MHz] Mem[|||||||||||||||||       150M/408M]
  Avg[||||||||||||||||||||60.5% 1382MHz] Swp[                            0K/0K]

  PID USER       PRI  NI  VIRT   RES   SHR S CPU%-MEM%   TIME+  Command
18895 root        20   0  1096   568   528 R 55.0  0.1  0:07.84 iperf3 -c 192.16
 1170 root        20   0     0     0     0 R 53.0  0.0  3:29.89 napi/-7
18896 root        20   0  1096   568   528 R 50.0  0.1  0:07.69 iperf3 -c 192.16
 1172 root        20   0     0     0     0 S 32.0  0.0  0:51.83 napi/-9
 1171 root        20   0     0     0     0 R 27.0  0.0  1:21.66 napi/-8
 1178 root        20   0     0     0     0 S  9.0  0.0  3:33.15 napi/-14
 1181 root        20   0     0     0     0 S  9.0  0.0  4:48.44 napi/-17
18890 root        20   0  1912  1572  1080 R  3.0  0.4  0:05.44 htop
   10 root        20   0     0     0     0 S  1.0  0.0  0:01.72 ksoftirqd/0
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