BT Home Hub 5A - 18.06 and snapshots - Drop in maximum WAN to LAN throughput
Username: Bill
Origin: https://bugs.openwrt.org/index.php?do=details&task_id=1852
I observed recently there has been a drop off in maximum throughput from
WAN
to LAN ports on Home Hub 5A. I don’t have 100 Mbps VDSL2 connection, so I can’t verify whether the same drop is visible from DSL to LAN port.
The issue is old snapshots were capable of 130 Mbps and LEDE 17.01 (k4.4) could manage 110 Mbps. However, 18.06.1 (k4.9) can only manage 80+ Mbps.....
I don’t possess any snapshots between 9 Jan 2018 to 25 may 2018, and so cannot determine which commit may have caused this sudden drop in throughput.
Running iperf3 on Windows laptop in server mode connected to
WAN
port.
Running iperf3 on another Windows laptop in client mode connected to LAN port.
iperf3 results: (Down/Upload Mbps)
SMP enabled: r3386 (eth1.2) 11 Feb 2017: 149/98 Mbps
r5172 26 Oct 2017: 148/138 Mbps r5702 9 Jan 2018: 138/130 Mbps
I think switch to kernel 4.14 - 17 May 2018
r7044 (k4.14) 25 May 2018 iperf3: 81/78 Mbps without flow offloading r8065 (k4.14) 17 Sep 2018 iperf3: 75/71 Mbps without flow offloading
17.01.4 (k4.4, no SMP) Oct 2017 104 mbps, iperf3: 115/106 Mbps 17.01.6 (k4.4, no SMP) Sep 2018 iperf3: 112/104 Mbps
18.06.1 (k4.9) Aug 2018 83 mbps, iperf3: 85/78 Mbps