07-20-2016, 10:18 AM
(This post was last modified: 07-20-2016, 10:19 AM by sheffield_nick.)
(I've seen there are some older threads / bug reports about gigabit Ethernet running VERY slowly, but I think this might be a separate issue?)
I've got 5 PINE A64+ 2GB boards running Debian Jessie 8.5 base, kernel3.10.102-2-pine64-longsleep, connected to an otherwise empty 8-port gigabit switch. The speeds I'm getting with iperf are excellent
, but strangely variable.
Between board A and B I can consistently get 828 Mbits/sec over long periods, but back the other way I only get 733 Mbits/sec. With pairs of the other boards I can consistently get 800+ Mbits/sec on some, but only 561/596/633 Mbits/sec on others.
Do you think this is simply hardware variation? 47% range!
Thanks
I've got 5 PINE A64+ 2GB boards running Debian Jessie 8.5 base, kernel3.10.102-2-pine64-longsleep, connected to an otherwise empty 8-port gigabit switch. The speeds I'm getting with iperf are excellent
, but strangely variable.Code:
# Run server on board 1
iperf -s -V
# Run client for 100 seconds on board 2, connecting to board 1
iperf -c board1 -i 1 -t 100 -VBetween board A and B I can consistently get 828 Mbits/sec over long periods, but back the other way I only get 733 Mbits/sec. With pairs of the other boards I can consistently get 800+ Mbits/sec on some, but only 561/596/633 Mbits/sec on others.
Do you think this is simply hardware variation? 47% range!
Thanks