I have a local OpenVPN server on Banan Pi M1, with latest armbian. I tried to replace with OrangePi3 but current results is disappointing
iperf3 results on Banana Pi M1 OpenVPN server
Connecting to host bouygues.iperf.fr, port 5201
[ 4] local 10.8.0.4 port 46250 connected to 89.84.1.222 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 1.69 MBytes 14.1 Mbits/sec
[ 4] 1.00-2.00 sec 1.81 MBytes 15.1 Mbits/sec
[ 4] 2.00-3.00 sec 2.43 MBytes 20.4 Mbits/sec
[ 4] 3.00-4.00 sec 681 KBytes 5.58 Mbits/sec
[ 4] 4.00-5.00 sec 1.99 MBytes 16.7 Mbits/sec
[ 4] 5.00-6.00 sec 1.33 MBytes 11.2 Mbits/sec
[ 4] 6.00-7.00 sec 1.55 MBytes 13.0 Mbits/sec
[ 4] 7.00-8.00 sec 1.62 MBytes 13.6 Mbits/sec
[ 4] 8.00-9.00 sec 1.33 MBytes 11.2 Mbits/sec
[ 4] 9.00-10.00 sec 1.76 MBytes 14.8 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.00 sec 16.2 MBytes 13.6 Mbits/sec sender
[ 4] 0.00-10.00 sec 15.7 MBytes 13.2 Mbits/sec receiver
iperf3 results on Orange Pi 3 OpenVPN server
Connecting to host bouygues.iperf.fr, port 5201
[ 4] local 10.8.1.4 port 41583 connected to 89.84.1.222 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 621 KBytes 5.09 Mbits/sec
[ 4] 1.00-2.00 sec 868 KBytes 7.11 Mbits/sec
[ 4] 2.00-3.00 sec 1.18 MBytes 9.89 Mbits/sec
[ 4] 3.00-4.00 sec 1.16 MBytes 9.75 Mbits/sec
[ 4] 4.00-5.00 sec 1.02 MBytes 8.53 Mbits/sec
[ 4] 5.00-6.00 sec 966 KBytes 7.92 Mbits/sec
[ 4] 6.00-7.00 sec 726 KBytes 5.95 Mbits/sec
[ 4] 7.00-8.00 sec 676 KBytes 5.54 Mbits/sec
[ 4] 8.00-9.00 sec 2.58 MBytes 21.7 Mbits/sec
[ 4] 9.00-10.00 sec 4.78 MBytes 40.1 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.00 sec 14.5 MBytes 12.2 Mbits/sec sender
[ 4] 0.00-10.00 sec 14.0 MBytes 11.7 Mbits/sec receiver
As you can see, connection via OPi3 is slower, but more than that, it is unstabe and fluctuating from 5-8 MBit/s to 40 MBit/s
What can I tune to improve openvpn connectivity?