Ethernet Throughput¶

Critical Link has performed multiple throughput tests of the RGMII based Ethernet interface from the MitySOM-5CSx family of modules. The testing below has been performed using the Critical Link MitySOM-5CSx development board (80-000578) which features a Micrel KSZ9031 Gigabit Ethernet phy.

As with any Ethernet phy implementation the layout of the phy signals must be done properly otherwise degraded performance can occur. Please feel free to contact your Critical Link representative for design recommendations.

Sample TCP iperf version 2 test with MitySOM-5CSX (5CSX-H6-42A-RC) Baseboard as Client¶

root@socfpga_cyclone5:~# iperf -c 10.0.0.114 -t 30 -i 5
------------------------------------------------------------
Client connecting to 10.0.0.114, TCP port 5001
TCP window size: 20.7 KByte (default)
------------------------------------------------------------
[  3] local 10.0.20.80 port 37251 connected with 10.0.0.114 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0- 5.0 sec    285 MBytes    478 Mbits/sec
[  3]  5.0-10.0 sec    285 MBytes    478 Mbits/sec
[  3] 10.0-15.0 sec    285 MBytes    478 Mbits/sec
[  3] 15.0-20.0 sec    285 MBytes    478 Mbits/sec
[  3] 20.0-25.0 sec    285 MBytes    478 Mbits/sec
[  3] 25.0-30.0 sec    285 MBytes    479 Mbits/sec
[  3]  0.0-30.0 sec  1.67 GBytes    478 Mbits/sec

Sample TCP iperf version 2 test with MitySOM-5CSX (5CSX-H6-42A-RC) Baseboard as Server¶

root@socfpga_cyclone5:~# iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[  4] local 10.0.20.80 port 5001 connected with 10.0.0.114 port 58510
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-30.0 sec  2.55 GBytes    730 Mbits/sec

Measured "Gigabit" performance using MitySOM 5CSX-H6-42A-RC module on 5CSx Development Kit Board¶

stmmaceth ff702000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx

TCP¶

iperf version 3

TCP OUT (client): 666 MBits/sec
TCP IN (server): 810 MBits/sec

iperf version 2.0.4 (7 Apr 2008)

TCP OUT (client): 577 MBits/sec
TCP IN (server): 733 MBits/sec

UDP¶

iperf version 2.0.4 (7 Apr 2008)

UDP OUT (client): 697 MBits/sec
UDP IN (server): 618 MBits/sec

Measured "100Mbit" performance using MitySOM 5CSX-H6-42A-RC module on 5CSx Development Kit Board with 100Mbit hub¶

stmmaceth ff702000.ethernet eth0: Link is Up - 100Mbps/Half - flow control off

iperf version 3

TCP OUT (client): 88 MBits/sec
TCP IN (server): 79 MBits/sec

Measured "10Mbit" performance using MitySOM 5CSX-H6-42A-RC module on 5CSx Development Kit Board with 10Mbit hub¶

stmmaceth ff702000.ethernet eth0: Link is Up - 10Mbps/Half - flow control off

iperf version 3

TCP OUT (client): 5.4 MBits/sec
TCP IN (server): 7.8 MBits/sec