I recently upgraded my home network to 10Gbit but I don't get this speed.
tl;dr:
Two devices have 10Gbit network adapters and between the two I get max 2Gbit speed.
My Windows-based laptop with Wi-Fi 5 gets around 30/60Mbps
Below is a summary of my network devices and how they are connected
My ISP > Netgear R7800 router > Netgear 10-port/10G switch (GS110EMX) > (Windows desktop PC and Ubuntu Linux desktop server)
Specs of the machines:
Desktop Windows PC:
3x SanDisk Ultra 960GB SATA 3 HDDs
ipolex 10Gb PCI Express Network Card for Intel X550-T1
Ubuntu server (Ubuntu 18.04):
Crucial m500 240GB SSD (OS installed on it)
2x WD Red 3.5 6TB HDDs
2x WD Red 3.5 3TB HDDs
ipolex 10Gb PCI Express Network Card for Intel X550-T1
Laptop (Thinkpad x1 extreme):
2TB Samsung 970 EVO
Intel Wireless-AC 9560 160MHz
The desktop PC is connected to the Netgear 10Gb switch using a Cat 8 cable that's 2m long and the Ubuntu server desktop is also connected to the same switch using a Cat 8 cable.
A single Cat 5e cable is used to connect the switch to the Netgear router that handles DHCP for all my network attached devices.
When I transfer some files located on one of my SanDisk SSDs and transfer it into my Ubuntu server I get only between 1-2Gbps.
Is this due to an HDD bottleneck on the Windows PC or in the Ubuntu server?
Would I only get the full 10Gbit speed if I had an m.2 NVME SSD attached to both the Windows PC and Ubuntu server?
Does this data transfer go through my Netgear router and then back onto the switch, and might that cause the delay?
Wi-Fi speed is also slow even when the laptop is right next to the router and has a Wi-Fi 5 card that should be capable of 1Gbit speeds.
iperf results below from desktop Windows to Ubuntu server
Accepted connection from 192.168.1.18, port 63892
[ 5] local 192.168.1.222 port 5201 connected to 192.168.1.18 port 63893
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-1.00 sec 179 MBytes 1.50 Gbits/sec
[ 5] 1.00-2.00 sec 176 MBytes 1.47 Gbits/sec
[ 5] 2.00-3.00 sec 210 MBytes 1.76 Gbits/sec
[ 5] 3.00-4.00 sec 189 MBytes 1.59 Gbits/sec
[ 5] 4.00-5.00 sec 208 MBytes 1.74 Gbits/sec
[ 5] 5.00-6.00 sec 226 MBytes 1.90 Gbits/sec
[ 5] 6.00-7.00 sec 225 MBytes 1.89 Gbits/sec
[ 5] 7.00-8.00 sec 197 MBytes 1.65 Gbits/sec
[ 5] 8.00-9.00 sec 223 MBytes 1.87 Gbits/sec
[ 5] 9.00-10.00 sec 255 MBytes 2.14 Gbits/sec
[ 5] 10.00-10.04 sec 6.14 MBytes 1.37 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-10.04 sec 0.00 Bytes 0.00 Gbits/sec sender
[ 5] 0.00-10.04 sec 2.04 GBytes 1.75 Gbits/sec receiver
