Network interface bandwidth measurement

Tools installation

• On your host, install iperf tool (here on Debian/Ubuntu like system):

$ sudo apt-get install iperf

• Install it on your target too:

$ make menuconfig

Package Selection for the target  --->
    Networking  --->
        [*]   iperf

Test

APF server, Host client

• On your target:

$ iperf -s -i 2

• On your host (192.168.1.10 is the IP of your APF):

$ iperf -c 192.168.1.10 -i 2

Current APF27 results

Linux 2.6.29, direct connection (asked TCP window size of 16k, got 32k):

82-83 Mbits/sec

Host server, APF client

• On your host:

$ iperf -s -i 2

• On your target (192.168.1.2 is the IP of your Host):

$ iperf -c 192.168.1.2 -i 2

Increase window size

• add -w100k (for example 100kB) to both server and client command.

Links

• iperf project website
• http://fr.wikipedia.org/wiki/Iperf