Slow ethernet in linux

[androsch]

I'm having a problem with Ethernet speed too, but it's not nearly as severe as the OP.

I tested with iperf3 and the Pine is only getting around 450 Mbit/sec. When testing from another PC (on the same switch) I'm getting upwards of 900 Mbit/sec.

Any suggestions of things that I might need to reconfigure?

TIA!

You should read the messages in this part of the thread: http://forum.pine64.org/showthread.php?t...10#pid2810

Bottom line is that you won't get max throughput with one thread, and inbound speeds are different from outbound.  My tests were all done over a direct connection with another host, no router or switch in the way, with minimal services running (e.g., no desktop).

I'm doubt dhcp has anything to do with network throughput. Once the ip address is assigned, the dhcp client will go idle for the span of the lease.

I agree, was only interested if the dhcp server gives certain options for the pine, e.g. mtu size or similar.
The config seems the same than mine and i also have the latest kernel, but my ethernet speed with GB activated is ridiculous (below 10Mbits). Iperf also shows a lot of retries with gb speed, with 100mbit its zero retries and steady rate about 95mbits....
So there must be some difference why some boards running high speed with gb lan and others just work with a port or setting 100mbits?

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Here is the output of ifconfig:

[code}
eth0 Link encap:Ethernet HWaddr 7a:6e:63:ac:21:f1
inet addr:192.168.0.163 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::786e:63ff:feac:21f1/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:123494 errors:0 dropped:0 overruns:0 frame:0
TX packets:401365 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:18154190 (17.3 MiB) TX bytes:601721040 (573.8 MiB)
Interrupt:114

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:480 (480.0 B) TX bytes:480 (480.0 B)
[/code]

And here is my interfaces file

Code:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet dhcp

As for the DHCP server settings, I'm not really sure what you are looking for. The DHCP server is a router supplied to me by my internet provider. If there are specific settings you are looking for to help troubleshoot, let me know and I can check them on the router.

And thank YOU for supporting me! :-)

Thanks for the values, sem the same than mine. Hint for your original question already given in next post, thanks to him also....

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