I have a BananaPi running 4.2 (with Wheezy) and I am getting poor network speed. When testing download a file from the internet, I am averaging ~500k/s.

 

I have another BananaPi running 3.4 (also with Wheezy) and on that board, I am averaging ~3MB/s downloading the same file from the same location.

 

I tested this multiple times and the results are pretty much the same.

 

Any idea why network performance is so poor on 4.2?

 

Thanks.

I had a similar issue with the LIME2 / A20-SOM ( on a custom PCB )
had to set the Ethernet interface down to 100mbps ( Our routing was wrong for a 1000mbps link to be working well )
We get better throughput with the device set to 100 than we did with 1000.

this is in /etc/network/interfaces :
allow-hotplug eth0
iface eth0 inet dhcp
pre up mii-tool -F 100baseTx-FD eth0

This might not apply to you ( I think the timing settings for the banana Pi are set correctly )
 

Thanks for the feedback... I may have had a faulty Ethernet cable. I swapped cables as well as ports on my switch, and now speed seems much better, and more consistent with my other BPi running 3.4.

With or without the suggestion from ddkDIZ above, I've got fairly slow eth0 traffic.

 

Using wget, I show 1.9M for a half second, and it quickly falls down to about 250K.

 

Any other ideas?

See here:

http://forum.armbian.com/index.php/topic/31-problems-with-gigabit/

 

 

Some boards are nearly perfect, other can't be used with GBit.

Seems to be a A20-Problem.

Some boards are nearly perfect, other can't be used with GBit.

Seems to be a A20-Problem.

 

Nope, it's a problem with the PHY used and mainline kernel: http://irclog.whitequark.org/linux-sunxi/2016-03-10#15740723;

 

EDIT: I have a Lime2 that's pretty fast with 3.4.110 and when using 4.4 I can be happy if throughput exceeds 40 KB/s in one direction (no typo!)