Cool! I actually wasn't aware about NICs with FPGAs on them. You learn something new every day on HN. My solution wasn't as fast and it could never do what you

Cool! I actually wasn't aware about NICs with FPGAs on them. You learn something new every day on HN. My solution wasn't as fast and it could never do what you describe (start sending bytes before the packet was fully received). The market signal messages were actually batched together (usually one to 5), compressed with zlib and sent as a single multicast packet.