Likewise, on a non-congested network (802.11ac), directly from the laptop to the AP:
uname -r 4.13.0-rc1 ➜ linux git:(5771a8c08880) ✗ cat /proc/sys/net/ipv4/tcp_congestion_control bbr ➜ linux git:(5771a8c08880) ✗ iperf3 -u -b 1000M -c rtr Connecting to host rtr, port 5201 [ 4] local 10.10.10.76 port 49939 connected to rtr port 5201 [ ID] Interval Transfer Bandwidth Total Datagrams [ 4] 0.00-1.00 sec 24.6 MBytes 207 Mbits/sec 3153 [ 4] 1.00-2.00 sec 27.2 MBytes 228 Mbits/sec 3484 [ 4] 2.00-3.00 sec 26.9 MBytes 226 Mbits/sec 3441 [ 4] 3.00-4.00 sec 26.8 MBytes 225 Mbits/sec 3432 [ 4] 4.00-5.00 sec 27.0 MBytes 226 Mbits/sec 3453 [ 4] 5.00-6.00 sec 27.2 MBytes 228 Mbits/sec 3479 [ 4] 6.00-7.00 sec 26.7 MBytes 224 Mbits/sec 3421 [ 4] 7.00-8.00 sec 27.3 MBytes 229 Mbits/sec 3492 [ 4] 8.00-9.00 sec 27.2 MBytes 228 Mbits/sec 3484 [ 4] 9.00-10.00 sec 27.0 MBytes 227 Mbits/sec 3457 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 4] 0.00-10.00 sec 268 MBytes 225 Mbits/sec 0.035 ms 8231/34295 (24%) [ 4] Sent 34295 datagrams iperf Done. ➜ linux git:(5771a8c08880) ✗ iperf3 -c rtr Connecting to host rtr, port 5201 [ 4] local 10.10.10.76 port 48172 connected to rtr port 5201 [ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 1.70 MBytes 14.2 Mbits/sec 0 11.3 KBytes [ 4] 1.00-2.00 sec 1.59 MBytes 13.4 Mbits/sec 0 8.48 KBytes [ 4] 2.00-3.00 sec 1.49 MBytes 12.5 Mbits/sec 0 11.3 KBytes [ 4] 3.00-4.00 sec 1.54 MBytes 12.9 Mbits/sec 0 11.3 KBytes [ 4] 4.00-5.00 sec 1.55 MBytes 13.0 Mbits/sec 0 8.48 KBytes [ 4] 5.00-6.00 sec 1.50 MBytes 12.6 Mbits/sec 0 8.48 KBytes [ 4] 6.00-7.00 sec 1.50 MBytes 12.6 Mbits/sec 0 8.48 KBytes [ 4] 7.00-8.00 sec 1.47 MBytes 12.3 Mbits/sec 0 8.48 KBytes [ 4] 8.00-9.00 sec 1.32 MBytes 11.1 Mbits/sec 0 8.48 KBytes [ 4] 9.00-10.00 sec 1.43 MBytes 12.0 Mbits/sec 0 8.48 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 15.1 MBytes 12.7 Mbits/sec 0 sender [ 4] 0.00-10.00 sec 15.0 MBytes 12.6 Mbits/sec receiver iperf Done. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1670041 Title: Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless 1535) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1670041/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
