Interniche IP stack performance

There is an Altera app note that does list various speeds over different RAM and hardware checksumming methods. We chose to use lwIP because it's faster (I don't have exact numbers but I know it to be faster) and because lwIP doesn't require uC/OS-II. Whereas Interniche "superloop" mode is hard to get running and barely documented, lwIP has an efficient "RAW API" mode that does support a superloop type of mode. lwIP also has a netconn API as well as a BSD mostly-compatible socket API.