Both Katran[1] by Facebook and Unimog[2] by Cloudflare are L4 load balancers written using XDP. It's factually incorrect to claim that XDP is useless on servers

Both Katran[1] by Facebook and Unimog[2] by Cloudflare are L4 load balancers written using XDP. It's factually incorrect to claim that XDP is useless on servers as many companies intentionally choose to design their systems around commodity hardware. [1]: https://engineering.fb.com/2018/05/22/open-source/open-sourcing-katran-a-scalable-network-load-balancer/ [2]: https://blog.cloudflare.com/unimog-cloudflares-edge-load-balancer