Cloudflare freed up 100TB of RAM behind its 1.1.1.1 DNS without adding a single server
The optimization work was centered on Big Pineapple, Cloudflare’s DNS caching platform behind the popular 1.1.1.1 resolver, DNS Firewall, and several other DNS services they offer. In a technical blog post, systems engineer Sebastiaan Neuteboom detailed five changes to the Rust codebase that shrank a typical cache entry from 953…