SlimTCP: It's fast, but not because it's slim — mentioned by CajuMD

Sat, 05 Sep 2026 09:49:17 GMT

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

Paper and discussion history. A mention is not an endorsement.

SlimTCP: It's fast, but not because it's slim · HackerPapers discussions

SlimTCP: It's fast, but not because it's slim — mentioned by CajuMD