Story thread · 2 reports / 2 sources

Cloudflare Cuts 100 TB of Memory from 1.1.1.1 DNS Cache

infoq.com · 14hShare

Cloudflare redesigned the in-memory representation of its Big Pineapple DNS cache, reducing the per-entry footprint by 56% and freeing roughly 100 TB of working-set memory across its fleet. The Rust-based changes also increased cache insertion throughput by 43% and reduced lookup latency by 19%, while enabling Cloudflare to increase cache capacity without additional memory. By Leela Kumili

First report: Cloudflare saves 100 TB of RAM again, this time by slashing server hashes by 90% — cutting 100,000 entries down to 10,000 eliminates massive cache bloat — tomshardware.com, 2d