Cloudflare Details Gen 13 Server Engineering Decisions

Cloudflare's latest blog post delves into the engineering rationale behind its new Gen 13 servers, designed to double throughput and improve efficiency. The upgrade features a 192-core AMD EPYC Turin processor, trading larger L3 cache for increased core count, a move supported by the new Rust-based FL2 software stack. This configuration offers up to 2x throughput, 50% better performance per watt, and higher rack density. The post details component choices, including memory, storage, and networking, emphasizing how these hardware advancements align with software stack evolution to enhance edge computing capabilities and reduce operational costs.