Slow Speed when network interface is added in Network/Interfaces

klaku007 · Apr 17th 2023

Hello.

The problem is that when the network interface in omv is added, the read speed oscillates around 67MB/s (~480mbit), Write around 110MB/s (~1000mbit). Checked with iperf3, when I remove the network interface from the omv menu, log in to the system, I add the interface via dhclient, the reading speed is around 100MB/s (900mbit). The same machine when running Windows from USB gets iperf3 results of 940/940mbit.

As soon as I add back the network interface, the speed drops again to 480mbit.

Log iperf3 on windows

Code

X:\iperf>iperf3.exe -c 192.168.1.176
Connecting to host 192.168.1.176, port 5201
[  4] local 192.168.1.134 port 49714 connected to 192.168.1.176 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec   112 MBytes   943 Mbits/sec
[  4]   1.00-2.00   sec   112 MBytes   942 Mbits/sec
[  4]   2.00-3.00   sec   112 MBytes   942 Mbits/sec
[  4]   3.00-4.00   sec   112 MBytes   942 Mbits/sec
[  4]   4.00-5.00   sec   112 MBytes   942 Mbits/sec
[  4]   5.00-6.00   sec   112 MBytes   942 Mbits/sec
[  4]   6.00-7.00   sec   112 MBytes   942 Mbits/sec
[  4]   7.00-8.00   sec   112 MBytes   942 Mbits/sec
[  4]   8.00-9.00   sec   112 MBytes   942 Mbits/sec
[  4]   9.00-10.00  sec   112 MBytes   942 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.00  sec  1.10 GBytes   942 Mbits/sec                  sender
[  4]   0.00-10.00  sec  1.10 GBytes   942 Mbits/sec                  receiver

iperf Done.

X:\iperf>iperf3.exe -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 192.168.1.176, port 51944
[  5] local 192.168.1.134 port 5201 connected to 192.168.1.176 port 51945
[ ID] Interval           Transfer     Bandwidth
[  5]   0.00-1.00   sec   106 MBytes   892 Mbits/sec
[  5]   1.00-2.00   sec   112 MBytes   941 Mbits/sec
[  5]   2.00-3.00   sec   112 MBytes   941 Mbits/sec
[  5]   3.00-4.00   sec   112 MBytes   941 Mbits/sec
[  5]   4.00-5.00   sec   112 MBytes   941 Mbits/sec
[  5]   5.00-6.00   sec   112 MBytes   937 Mbits/sec
[  5]   6.00-7.00   sec   112 MBytes   941 Mbits/sec
[  5]   7.00-8.00   sec   112 MBytes   940 Mbits/sec
[  5]   8.00-9.00   sec   112 MBytes   941 Mbits/sec
[  5]   9.00-10.00  sec   111 MBytes   935 Mbits/sec
[  5]  10.00-10.05  sec  5.67 MBytes   940 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  5]   0.00-10.05  sec  1.09 GBytes  935 Mbits/sec                  sender
[  5]   0.00-10.05  sec  1.09 GBytes   935 Mbits/sec                  receiver
-----------------------------------------------------------

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Now i dont have any interfaces and speed are ok, but i had to add a script that run dhclient every startup

chente · Apr 18th 2023

Quote from klaku007

when I remove the network interface from the omv menu

What does it mean when I remove the network interface? How can you access the server without network interface?

???

When the interface is removed, what is the output of:

ip a

klaku007 · Apr 18th 2023

I access it directly by plugin the keyboard and screen to the OMV server(M910q).

This are the speeds when interface is added in Network/Interfaces in OMV

Code

Connecting to host 192.168.1.176, port 5201
[  5] local 192.168.1.134 port 36782 connected to 192.168.1.176 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  60.2 MBytes   505 Mbits/sec    0    214 KBytes
[  5]   1.00-2.00   sec  58.4 MBytes   490 Mbits/sec    0    214 KBytes
[  5]   2.00-3.00   sec  58.7 MBytes   493 Mbits/sec    0    214 KBytes
[  5]   3.00-4.00   sec  61.9 MBytes   519 Mbits/sec    0    214 KBytes
[  5]   4.00-5.00   sec  59.3 MBytes   498 Mbits/sec    0    214 KBytes
[  5]   5.00-6.00   sec  57.4 MBytes   482 Mbits/sec    0    214 KBytes
[  5]   6.00-7.00   sec  57.4 MBytes   482 Mbits/sec    0    214 KBytes
[  5]   7.00-8.00   sec  57.4 MBytes   482 Mbits/sec    0    214 KBytes
[  5]   8.00-9.00   sec  57.4 MBytes   482 Mbits/sec    0    214 KBytes
[  5]   9.00-10.00  sec  57.4 MBytes   482 Mbits/sec    0    214 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   586 MBytes   491 Mbits/sec    0             sender
[  5]   0.00-10.00  sec   585 MBytes   490 Mbits/sec                  receiver

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When i delete it then reboot OMV and run dhclient to add interfaces in console speed looks better but not perfect.

Code

Connecting to host 192.168.1.176, port 5201
[  5] local 192.168.1.134 port 44296 connected to 192.168.1.176 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  99.1 MBytes   831 Mbits/sec    0    219 KBytes
[  5]   1.00-2.00   sec   100 MBytes   843 Mbits/sec    0    219 KBytes
[  5]   2.00-3.00   sec  99.1 MBytes   831 Mbits/sec    0    219 KBytes
[  5]   3.00-4.00   sec  99.4 MBytes   834 Mbits/sec    0    219 KBytes
[  5]   4.00-5.00   sec  98.7 MBytes   828 Mbits/sec    0    219 KBytes
[  5]   5.00-6.00   sec  99.6 MBytes   835 Mbits/sec    0    219 KBytes
[  5]   6.00-7.00   sec  99.1 MBytes   831 Mbits/sec    0    219 KBytes
[  5]   7.00-8.00   sec  97.4 MBytes   817 Mbits/sec    1    219 KBytes
[  5]   8.00-9.00   sec  99.9 MBytes   838 Mbits/sec    0    219 KBytes
[  5]   9.00-10.00  sec  99.7 MBytes   837 Mbits/sec    0    219 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   992 MBytes   833 Mbits/sec    1             sender
[  5]   0.00-10.00  sec   992 MBytes   832 Mbits/sec                  receiver

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here is configuration "ip a" after running dhclient without interfaces on web GUI.

Code

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp0s31f6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 6c:4b:90:05:89:4b brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.134/24 brd 192.168.1.255 scope global dynamic enp0s31f6
       valid_lft 86294sec preferred_lft 86294sec
    inet6 fe80::6e4b:90ff:fe05:894b/64 scope link
       valid_lft forever preferred_lft forever
3: br-188d22b1f4fb: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:aa:c6:1c:37 brd ff:ff:ff:ff:ff:ff
    inet 172.18.0.1/16 brd 172.18.255.255 scope global br-188d22b1f4fb
       valid_lft forever preferred_lft forever
    inet6 fe80::42:aaff:fec6:1c37/64 scope link
       valid_lft forever preferred_lft forever
4: br-683e94aa8553: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:17:04:eb:74 brd ff:ff:ff:ff:ff:ff
    inet 172.31.0.1/16 brd 172.31.255.255 scope global br-683e94aa8553
       valid_lft forever preferred_lft forever
    inet6 fe80::42:17ff:fe04:eb74/64 scope link
       valid_lft forever preferred_lft forever
5: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:e0:01:68:d9 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:e0ff:fe01:68d9/64 scope link
       valid_lft forever preferred_lft forever
6: br-da8d226719f4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:a4:15:22:46 brd ff:ff:ff:ff:ff:ff
    inet 172.19.0.1/16 brd 172.19.255.255 scope global br-da8d226719f4
       valid_lft forever preferred_lft forever
    inet6 fe80::42:a4ff:fe15:2246/64 scope link
       valid_lft forever preferred_lft forever
8: veth984e0f7@if7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-188d22b1f4fb state UP group default
    link/ether 16:e4:f4:18:c8:5f brd ff:ff:ff:ff:ff:ff link-netnsid 3
    inet6 fe80::14e4:f4ff:fe18:c85f/64 scope link
       valid_lft forever preferred_lft forever
10: veth9d168dc@if9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default
    link/ether aa:ae:cc:82:b0:a8 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::a8ae:ccff:fe82:b0a8/64 scope link
       valid_lft forever preferred_lft forever
12: vethd0bebaf@if11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-683e94aa8553 state UP group default
    link/ether 06:d9:82:e9:f2:c0 brd ff:ff:ff:ff:ff:ff link-netnsid 4
    inet6 fe80::4d9:82ff:fee9:f2c0/64 scope link
       valid_lft forever preferred_lft forever
14: veth6cbc7f0@if13: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-da8d226719f4 state UP group default
    link/ether ca:b8:dd:3c:b8:b2 brd ff:ff:ff:ff:ff:ff link-netnsid 2
    inet6 fe80::c8b8:ddff:fe3c:b8b2/64 scope link
       valid_lft forever preferred_lft forever
18: veth209dc5e@if17: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-683e94aa8553 state UP group default
    link/ether f6:1c:16:a1:44:76 brd ff:ff:ff:ff:ff:ff link-netnsid 1
    inet6 fe80::f41c:16ff:fea1:4476/64 scope link
       valid_lft forever preferred_lft forever

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chente · Apr 18th 2023

Quote from klaku007

I access it directly by plugin the keyboard and screen

ok, I was missing that detail, I never think about that possibility

I think I'm not the best person to answer this but a couple of shots in the air that I would try.

1. Give preference to the ipv4 network interface in the OMV GUI using the metric. Give it a low value.

2. Disable ipv6.

klaku007 · Apr 19th 2023

It does not help. Here is "ip a" when network interface is added

Code

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp0s31f6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 6c:4b:90:05:89:4b brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.134/24 brd 192.168.1.255 scope global enp0s31f6
       valid_lft forever preferred_lft forever
3: br-683e94aa8553: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:c7:d7:24:11 brd ff:ff:ff:ff:ff:ff
    inet 172.31.0.1/16 brd 172.31.255.255 scope global br-683e94aa8553
       valid_lft forever preferred_lft forever
    inet6 fe80::42:c7ff:fed7:2411/64 scope link
       valid_lft forever preferred_lft forever
4: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:a4:be:9c:8f brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:a4ff:febe:9c8f/64 scope link
       valid_lft forever preferred_lft forever
5: br-da8d226719f4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:a9:2d:b0:76 brd ff:ff:ff:ff:ff:ff
    inet 172.19.0.1/16 brd 172.19.255.255 scope global br-da8d226719f4
       valid_lft forever preferred_lft forever
    inet6 fe80::42:a9ff:fe2d:b076/64 scope link
       valid_lft forever preferred_lft forever
6: br-188d22b1f4fb: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:ae:0e:47:0d brd ff:ff:ff:ff:ff:ff
    inet 172.18.0.1/16 brd 172.18.255.255 scope global br-188d22b1f4fb
       valid_lft forever preferred_lft forever
    inet6 fe80::42:aeff:fe0e:470d/64 scope link
       valid_lft forever preferred_lft forever
8: vethf0233d0@if7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-da8d226719f4 state UP group default
    link/ether 8e:1c:90:0e:3f:ee brd ff:ff:ff:ff:ff:ff link-netnsid 4
    inet6 fe80::8c1c:90ff:fe0e:3fee/64 scope link
       valid_lft forever preferred_lft forever
10: veth95c102a@if9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-188d22b1f4fb state UP group default
    link/ether 4e:7a:1a:07:fa:ce brd ff:ff:ff:ff:ff:ff link-netnsid 3
    inet6 fe80::4c7a:1aff:fe07:face/64 scope link
       valid_lft forever preferred_lft forever
12: vethf50d269@if11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-683e94aa8553 state UP group default
    link/ether 62:78:39:41:cb:45 brd ff:ff:ff:ff:ff:ff link-netnsid 2
    inet6 fe80::6078:39ff:fe41:cb45/64 scope link
       valid_lft forever preferred_lft forever
14: vethec9e4d8@if13: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default
    link/ether 6a:e6:94:d0:2b:44 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::68e6:94ff:fed0:2b44/64 scope link
       valid_lft forever preferred_lft forever
18: veth6a4bb71@if17: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-683e94aa8553 state UP group default
    link/ether 22:00:44:bb:0b:d3 brd ff:ff:ff:ff:ff:ff link-netnsid 1
    inet6 fe80::2000:44ff:febb:bd3/64 scope link
       valid_lft forever preferred_lft forever

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Ok found the tread with e1000e card adding at every startup seems fixingu the problem.

Code

ethtool -K <interface> tso off gso off

Slow Speed when network interface is added in Network/Interfaces

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