I'd like to add an example of ping and iperf to some host in my network which shows how wired network is:
~ $ ping 172.31.3.10 PING 172.31.3.10 (172.31.3.10): 56 data bytes 64 bytes from 172.31.3.10: icmp_seq=0 ttl=63 time=209.458 ms 64 bytes from 172.31.3.10: icmp_seq=1 ttl=63 time=238.693 ms 64 bytes from 172.31.3.10: icmp_seq=2 ttl=63 time=266.242 ms 64 bytes from 172.31.3.10: icmp_seq=3 ttl=63 time=190.822 ms 64 bytes from 172.31.3.10: icmp_seq=4 ttl=63 time=26.883 ms 64 bytes from 172.31.3.10: icmp_seq=5 ttl=63 time=167.670 ms 64 bytes from 172.31.3.10: icmp_seq=6 ttl=63 time=31.015 ms 64 bytes from 172.31.3.10: icmp_seq=7 ttl=63 time=146.986 ms 64 bytes from 172.31.3.10: icmp_seq=8 ttl=63 time=52.205 ms 64 bytes from 172.31.3.10: icmp_seq=9 ttl=63 time=60.419 ms ^C --- 172.31.3.10 ping statistics --- 10 packets transmitted, 10 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 26.883/139.039/266.242/85.208 ms ~ $ iperf3 -c 172.31.3.10 -P 1 Connecting to host 172.31.3.10, port 5201 [ 4] local 172.31.2.77 port 10662 connected to 172.31.3.10 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 4] 0.00-1.01 sec 0.00 Bytes 0.00 bits/sec 0 17.0 KBytes [ 4] 1.01-2.01 sec 0.00 Bytes 0.00 bits/sec 0 28.3 KBytes [ 4] 2.01-3.02 sec 128 KBytes 1.04 Mbits/sec 0 38.2 KBytes [ 4] 3.02-4.02 sec 0.00 Bytes 0.00 bits/sec 0 52.3 KBytes [ 4] 4.02-5.02 sec 0.00 Bytes 0.00 bits/sec 0 4.24 KBytes [ 4] 5.02-6.02 sec 0.00 Bytes 0.00 bits/sec 0 1.41 KBytes [ 4] 6.02-7.02 sec 0.00 Bytes 0.00 bits/sec 0 5.89 KBytes [ 4] 7.02-8.02 sec 0.00 Bytes 0.00 bits/sec 0 7.14 KBytes [ 4] 8.02-9.02 sec 128 KBytes 1.05 Mbits/sec 0 8.44 KBytes [ 4] 9.02-10.02 sec 0.00 Bytes 0.00 bits/sec 0 9.77 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 4] 0.00-10.02 sec 256 KBytes 209 Kbits/sec 0 sender [ 4] 0.00-10.76 sec 276 KBytes 210 Kbits/sec receiver iperf Done. ~ $ the same OpenBSD laptop but via Ethernet: ~ $ ping 172.31.3.10 PING 172.31.3.10 (172.31.3.10): 56 data bytes 64 bytes from 172.31.3.10: icmp_seq=0 ttl=64 time=7.316 ms 64 bytes from 172.31.3.10: icmp_seq=1 ttl=64 time=1.261 ms 64 bytes from 172.31.3.10: icmp_seq=2 ttl=64 time=1.380 ms 64 bytes from 172.31.3.10: icmp_seq=3 ttl=64 time=1.069 ms 64 bytes from 172.31.3.10: icmp_seq=4 ttl=64 time=1.135 ms 64 bytes from 172.31.3.10: icmp_seq=5 ttl=64 time=1.147 ms 64 bytes from 172.31.3.10: icmp_seq=6 ttl=64 time=1.130 ms 64 bytes from 172.31.3.10: icmp_seq=7 ttl=64 time=1.084 ms 64 bytes from 172.31.3.10: icmp_seq=8 ttl=64 time=1.088 ms 64 bytes from 172.31.3.10: icmp_seq=9 ttl=64 time=1.094 ms ^C --- 172.31.3.10 ping statistics --- 10 packets transmitted, 10 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 1.069/1.770/7.316/1.851 ms ~ $ iperf3 -c 172.31.3.10 -P 1 Connecting to host 172.31.3.10, port 5201 [ 4] local 172.31.3.7 port 40633 connected to 172.31.3.10 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 4] 0.00-1.01 sec 34.2 MBytes 285 Mbits/sec 0 176 KBytes [ 4] 1.01-2.02 sec 34.1 MBytes 283 Mbits/sec 0 243 KBytes [ 4] 2.02-3.02 sec 34.1 MBytes 286 Mbits/sec 0 295 KBytes [ 4] 3.02-4.02 sec 34.4 MBytes 288 Mbits/sec 0 339 KBytes [ 4] 4.02-5.02 sec 33.8 MBytes 283 Mbits/sec 0 21.2 KBytes [ 4] 5.02-6.02 sec 34.1 MBytes 286 Mbits/sec 0 172 KBytes [ 4] 6.02-7.02 sec 34.2 MBytes 287 Mbits/sec 0 240 KBytes [ 4] 7.02-8.02 sec 34.1 MBytes 286 Mbits/sec 0 293 KBytes [ 4] 8.02-9.02 sec 34.1 MBytes 286 Mbits/sec 0 337 KBytes [ 4] 9.02-10.02 sec 34.2 MBytes 287 Mbits/sec 0 374 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 4] 0.00-10.02 sec 342 MBytes 286 Mbits/sec 0 sender [ 4] 0.00-10.22 sec 342 MBytes 280 Mbits/sec receiver iperf Done. ~ $ and MBP via the same WiFi / AP: √ ~ % ping 172.31.3.10 PING 172.31.3.10 (172.31.3.10): 56 data bytes 64 bytes from 172.31.3.10: icmp_seq=0 ttl=63 time=3.231 ms 64 bytes from 172.31.3.10: icmp_seq=1 ttl=63 time=4.165 ms 64 bytes from 172.31.3.10: icmp_seq=2 ttl=63 time=2.891 ms 64 bytes from 172.31.3.10: icmp_seq=3 ttl=63 time=2.738 ms 64 bytes from 172.31.3.10: icmp_seq=4 ttl=63 time=2.619 ms 64 bytes from 172.31.3.10: icmp_seq=5 ttl=63 time=2.603 ms 64 bytes from 172.31.3.10: icmp_seq=6 ttl=63 time=2.990 ms 64 bytes from 172.31.3.10: icmp_seq=7 ttl=63 time=2.631 ms 64 bytes from 172.31.3.10: icmp_seq=8 ttl=63 time=3.170 ms 64 bytes from 172.31.3.10: icmp_seq=9 ttl=63 time=3.140 ms ^C --- 172.31.3.10 ping statistics --- 10 packets transmitted, 10 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 2.603/3.018/4.165/0.444 ms √ ~ % iperf3 -c 172.31.3.10 -P 1 Connecting to host 172.31.3.10, port 5201 [ 5] local 172.31.2.7 port 64543 connected to 172.31.3.10 port 5201 [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 25.4 MBytes 212 Mbits/sec [ 5] 1.00-2.00 sec 21.0 MBytes 176 Mbits/sec [ 5] 2.00-3.00 sec 18.9 MBytes 159 Mbits/sec [ 5] 3.00-4.00 sec 16.5 MBytes 138 Mbits/sec [ 5] 4.00-5.01 sec 13.6 MBytes 113 Mbits/sec [ 5] 5.01-6.00 sec 17.9 MBytes 151 Mbits/sec [ 5] 6.00-7.00 sec 17.6 MBytes 148 Mbits/sec [ 5] 7.00-8.00 sec 18.6 MBytes 156 Mbits/sec [ 5] 8.00-9.00 sec 12.9 MBytes 108 Mbits/sec [ 5] 9.00-10.00 sec 15.4 MBytes 129 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-10.00 sec 178 MBytes 149 Mbits/sec sender [ 5] 0.00-10.04 sec 176 MBytes 147 Mbits/sec receiver iperf Done. √ ~ % all of this seems like a strong indicator that the issue is inside iwx Meanwhile, I have't got anythin inside dmesg. -- wbr, Kirill
