here are some results from my last testing. guide used: IPERF - The Easy Tutorial
with all services up , and with kind of
normal traffic
5devices in network, 3lxc , with active 4 users, openvpn on, but not active, running some downloads over https(50-300KB/s), irc network with two servers, two bots, 4 users and bouncer on top of it, two sftp servers, several static web sites for local net and two sites hosted publicly,samba,transmission , plex.tv(no active stream, +ludus,haas,sentinel,pihole
plus corporate laptop with active vpn (2 ssh sessions, 4 jdbc sessions, discord/skype/mail + all fancy corporate apps around) , i will test the speed from it later as well
iperf report
[ ID] Interval Transfer Bandwidth
[ windows10's ubuntu] cable
[ 4] 0.0-10.0 sec 1.05 GBytes 904 Mbits/sec
[ 4] 0.0-32.0 sec 3.34 GBytes 896 Mbits/sec
[ 4] 0.0-32.0 sec 3.35 GBytes 898 Mbits/sec
[ from lxc container ] on router
[ 4] 0.0-32.0 sec 5.81 GBytes 1.56 Gbits/sec
[ another shell/screen session ] router
[ 4] 0.0- 3.7 sec 264 MBytes 596 Mbits/sec
[ 4] 0.0- 5.9 sec 418 MBytes 598 Mbits/sec
[ from RPI/raspian device] wifi
[ 4] 0.0- 2.0 sec 24.5 MBytes 101 Mbits/sec
[ 4] 0.0- 7.5 sec 93.5 MBytes 105 Mbits/sec
ad_ssh/sftp/vpn: i’ve notice that if compression is used, bandwidth is reduced ; also usinq TLS do the very similar.