Simon Willison’s Weblog

3rd December 2010 - Link Blog

Google and Microsoft Cheat on Slow-Start. Should You? Fascinating optimisation tricks by some of the big websites, which violate the RFC governing the TCP slow-start algorithm in order to perform better in the common case.

Posted 3rd December 2010 at 7:03 pm

Recent articles

Notes on the xAI/Anthropic data center deal - 7th May 2026
Live blog: Code w/ Claude 2026 - 6th May 2026
Vibe coding and agentic engineering are getting closer than I'd like - 6th May 2026

This is a link post by Simon Willison, posted on 3rd December 2010.

google 407 microsoft 129 networking 22 performance 95 recovered 213

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe