I would have a look at sending data with either DPDK (https://doc.dpdk.org/burst-replay/introduction.html https://doc.dpdk.org/burst-replay/introduction.html) o

I would have a look at sending data with either DPDK (https://doc.dpdk.org/burst-replay/introduction.html https://doc.dpdk.org/burst-replay/introduction.html) or AF_PACKET and mmap (https://sites.google.com/site/packetmmap/ https://sites.google.com/site/packetmmap/ ) You can also use ethtool -C on the NICs on both ends of the connection to rate limit the irq signal handeling allowing you to optimize for throughput instead of latency.