DNS is one of the critical services necessary for proper operation of the Internet. Also it is often a target of various cyber attacks. Considering this fact, operators of authoritative DNS servers require robust solutions offering enough performance for regular DNS traffic and resisting possible attacks against this service. That is the reason why we focus, besides other aspects, on the performance during development of our authoritative DNS server Knot DNS. Benchmarking is an inseparable part of the project and we have been exploring various ways of further performance growth. Recently we had a great opportunity to play with the epic 128-thread processor AMD EPYC 7702P. In this blog post I will share some results from its benchmarking.