|How Fast is TCP/IP on K70 under uClinux?|
As a very rough estimate for the TCP performance of K70 running uClinux, here is the output of the ftpget and the ftpput commands transferring a file between K70 and a host in a local network:
~ # busybox time ftpget 172.17.0.212 test.dat pub/test.dat
Processing the above results, we get the following TCP performance figures: 9605408/1.61 = 5966 KB/sec for ftpget and 9605408/2.09 = 4596 KB/sec for ftpput.
As an estimate of the UDP performance, here is the output of the cp command transferring the same file from an NFS-host to the K70:
~ # mount -o nolock 172.17.0.212:/opt/tmp /mnt
Processing the above results, we get the following UDP performance figure: 9605408/1.76 = 5458 KB/sec.The test was run on Emcraft Systems' K70 system-on-module (SOM) connected to a 100Mb Ethernet hub. The SOM provides an Ethernet 10/100Mb interface using an on-module Ethernet PHY.