SlimTCP is a TCP/IP stack written to answer the question: Would a trimmed-down TCP stack run faster in modern datacenters(Ultra Ethernet)?

According to my benchmarks, it achieves twice the goodput of mTCP on one connection. It also maintains 99.5% of its goodput on 4096 connections, while mTCP maintains 95%.

Yet, I'm still uncertain whether it's faster because it's simpler or because I overworked it.

Paper: https://arxiv.org/abs/2608.25834

Benchmarks: https://github.com/CajuM/eqds-cloudlab