Saving another 100TB of RAM with math (and Rust)

Cloudflare reduced memory usage in its Pingora Backend Router service by optimizing the consistent hashing algorithm used for load balancing, reclaiming over 100TB of RAM globally. The optimization involved mathematical improvements to the pingora-ketama library, Cloudflare's open-source consistent hashing tool, demonstrating how incremental efficiency gains become significant when scaled across the company's vast infrastructure.