Use NAS (Synology 918+) to test local network performance.
use iPerf3
I found this topic: https://forum.synology.com/enu/viewtopic.php?f=27&t=115257
A user by the name of jadahl compiled iPerf3 for Synology DSM
His website is here: http://www.jadahl.com, binaries can be found here: http://www.jadahl.com/iperf/
I grabbed this version: http://www.jadahl.com/iperf/DSM_6.1/iperf_apollolake-6.1_3.2-1.spk
Install in Synology using Package Center - Manual Install
Make sure ssh is enabled in Control Panel->Terminal & SNMP section
Grab a iPerf3 build for your client
Running: https://software.es.net/iperf/invoking.html
Windows client - using Wi-Fi
against a public iPerf server:
C:>iperf3 -c iperf.scottlinux.com
Connecting to host iperf.scottlinux.com, port 5201
[ 4] local 10.0.0.139 port 60348 connected to 45.33.39.39 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.01 sec 1.38 MBytes 11.4 Mbits/sec
[ 4] 1.01-2.00 sec 1.38 MBytes 11.6 Mbits/sec
[ 4] 2.00-3.01 sec 1.50 MBytes 12.5 Mbits/sec
[ 4] 3.01-4.00 sec 1.38 MBytes 11.6 Mbits/sec
[ 4] 4.00-5.00 sec 1.38 MBytes 11.5 Mbits/sec
[ 4] 5.00-6.00 sec 1.38 MBytes 11.6 Mbits/sec
[ 4] 6.00-7.00 sec 1.50 MBytes 12.6 Mbits/sec
[ 4] 7.00-8.01 sec 1.38 MBytes 11.5 Mbits/sec
[ 4] 8.01-9.00 sec 1.38 MBytes 11.6 Mbits/sec
[ 4] 9.00-10.00 sec 1.38 MBytes 11.5 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.00 sec 14.0 MBytes 11.7 Mbits/sec sender
[ 4] 0.00-10.00 sec 13.9 MBytes 11.7 Mbits/sec receiver
iperf Done.
Now, let’s test locally.
ssh into your NAS
$ iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
C:>iperf3 -c 10.0.0.5
Connecting to host 10.0.0.5, port 5201
[ 4] local 10.0.0.139 port 60386 connected to 10.0.0.5 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.01 sec 4.50 MBytes 37.5 Mbits/sec
[ 4] 1.01-2.00 sec 4.75 MBytes 40.1 Mbits/sec
[ 4] 2.00-3.01 sec 5.00 MBytes 41.8 Mbits/sec
[ 4] 3.01-4.00 sec 5.88 MBytes 49.5 Mbits/sec
[ 4] 4.00-5.00 sec 5.88 MBytes 49.3 Mbits/sec
[ 4] 5.00-6.00 sec 6.00 MBytes 50.3 Mbits/sec
[ 4] 6.00-7.00 sec 5.25 MBytes 44.0 Mbits/sec
[ 4] 7.00-8.00 sec 5.88 MBytes 49.3 Mbits/sec
[ 4] 8.00-9.00 sec 5.62 MBytes 47.2 Mbits/sec
[ 4] 9.00-10.00 sec 5.50 MBytes 46.2 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.00 sec 54.2 MBytes 45.5 Mbits/sec sender
[ 4] 0.00-10.00 sec 54.2 MBytes 45.5 Mbits/sec receiver
iperf Done.
on the server side you’ll see:
Accepted connection from 10.0.0.139, port 60385
[ 5] local 10.0.0.5 port 5201 connected to 10.0.0.139 port 60386
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 4.33 MBytes 36.4 Mbits/sec
[ 5] 1.00-2.00 sec 4.82 MBytes 40.5 Mbits/sec
[ 5] 2.00-3.00 sec 4.99 MBytes 41.9 Mbits/sec
[ 5] 3.00-4.00 sec 5.87 MBytes 49.2 Mbits/sec
[ 5] 4.00-5.00 sec 5.81 MBytes 48.7 Mbits/sec
[ 5] 5.00-6.00 sec 6.04 MBytes 50.7 Mbits/sec
[ 5] 6.00-7.00 sec 5.23 MBytes 43.9 Mbits/sec
[ 5] 7.00-8.00 sec 5.89 MBytes 49.4 Mbits/sec
[ 5] 8.00-9.00 sec 5.62 MBytes 47.2 Mbits/sec
[ 5] 9.00-10.00 sec 5.55 MBytes 46.6 Mbits/sec
[ 5] 10.00-10.02 sec 90.9 KBytes 49.6 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.02 sec 54.2 MBytes 45.4 Mbits/sec receiver
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------