ytn Posted September 22, 2015 Share Posted September 22, 2015 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. Link to comment Share on other sites More sharing options...
ddkDIZ Posted September 24, 2015 Share Posted September 24, 2015 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 eth0iface eth0 inet dhcppre up mii-tool -F 100baseTx-FD eth0This might not apply to you ( I think the timing settings for the banana Pi are set correctly ) Link to comment Share on other sites More sharing options...
ytn Posted September 24, 2015 Author Share Posted September 24, 2015 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. Link to comment Share on other sites More sharing options...
Kevin Welsh Posted February 26, 2016 Share Posted February 26, 2016 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? Link to comment Share on other sites More sharing options...
monti Posted March 14, 2016 Share Posted March 14, 2016 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. Link to comment Share on other sites More sharing options...
tkaiser Posted March 14, 2016 Share Posted March 14, 2016 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!) Link to comment Share on other sites More sharing options...
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