I held off releasing this until the official Deiban package was available. I was able to run multiple EtherCat Servo's running CNC with the optimized image and one of the following USB Ethernet adapters.

http://www.amazon.com/gp/product/B00007IFED/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
http://www.amazon.com/gp/product/B00BJOZNV2/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

This image is an optimized PI image that does not have remote desktop. To connect use SSH (putty) with the following:

user: root
passoword:raspberry

1. By default both eth0 DHCP eth1 is static 192.168.10.20. To change at a SSH console run SSH console "nano /etc/network/interfaces"
2. If you plan to use a bigger card at a SSH console run "raspi-config" and expand filesystem
3. Image has a symbolic link on BOOT partion so you can modify "interfaces" to setup ehternet adapters IP on root of SD-CARD. If you plan to use Ethercat make sure to bring up adapter without an IP for better pefomance.

What the image modification the image has:
1. Uses a minimal Raspian image
2. Updates all installed Apps
3. Updates Firmware of PI
4. Overclocks PI slightly to 800MHZ
5. Optimizes CPU governor
6. Uses new kernel that has USB driver rewritten
7. Optimizes File system and turns off swap file
8. Uses RamLog so SD card does not cause hit in performance
9. Turns off IPv6
10. Uses Dropbear vs OpenSSH
11. Uses Dash instead of Bash
12. Allows for second USB Ethernet
13. Turbo Mode turned off for smsc95xx
14. Optimized Kernel Settings in /etc/sysctl.conf
15. Disabled NTP
16. Installed killall that is required for Codesyscontrol script.
17. Symbolic link on BOOT partition so you can modify "interfaces" on root of SD-CARD

Please let me know if you find any other optimizations for running CoDeSys.

Thanks

Steps How Image was built_V4.txt [7.32 KiB]