Explore a 32-minute NANOG conference talk examining crucial Linux kernel enhancements affecting network throughput and Data Transfer Node (DTN) performance. Delve into detailed performance comparisons of MSG ZEROCOPY and BIG TCP implementations across multiple test environments at AmLight and ESnet. Learn about benchmark results comparing three Linux kernel versions, Intel versus AMD processors, and varying round trip times. Discover how MSG ZEROCOPY combined with packet pacing achieves up to 35% throughput improvement, while Linux 6.8 delivers impressive performance gains of up to 38% on WAN and 30% on LAN compared to kernel 5.15. Gain valuable insights into optimal host benchmarking practices and production-ready DTN configuration recommendations from ESnet speaker Brian Tierney.