Walt McKelvie developed a network throughput enhancement for the systemd/systemd repository, focusing on optimizing performance for high-speed network environments. He increased the transmit and receive queue sizes to 16,384, addressing scalability needs for modern NICs and data-center workloads. Using C and leveraging system and network programming expertise, Walt validated the changes with hardware such as the Marvell AQC113 and ensured compatibility through ethtool-based configuration. His work included documenting the rationale and testing approach, providing forward-compatible solutions that reduce bottlenecks and support larger ring sizes, reflecting a thoughtful and technically sound approach to improving network performance.