Cloudflare with Edward Wang & Kevin Guthrie

Cloudflare with Edward Wang & Kevin Guthrie

From Rust in Production by Matthias Endler

October 30, 2025 · 1h 8m · Episode 35

About this episode

This episode features a discussion with Cloudflare's Edward Wang and Kevin Guthrie about their Rust-based proxy, Pingora, and the challenges of scaling infrastructure.

How do you build a system that handles 90 million requests per second? That's the scale that Cloudflare operates at, processing roughly 25% of all internet traffic through their global network of 330+ edge locations. In this episode, we talk to Kevin Guthrie and Edward Wang from Cloudflare about Pingora, their open-source Rust-based proxy that replaced nginx across their entire infrastructure. We'll find out why they chose Rust for mission-critical systems handling such massive scale, the technical challenges of replacing battle-tested infrastructure, and the lessons learned from "oxidizing" one of the internet's largest networks.

People in this episode

Host: Matthias Endler

Guests: Edward Wang, Kevin Guthrie

Topics covered

  • Cloudflare
  • Rust programming
  • open-source software
  • high traffic systems
  • infrastructure replacement
  • technical challenges

Keywords

  • Cloudflare
  • Pingora
  • Rust
  • nginx
  • infrastructure
  • requests per second
  • open-source

Mentioned in this episode

Organizations: Cloudflare

Products: Pingora, nginx

Places: internet, global network

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