
Cloudflare Reclaims 100 Terabytes of Fleet Memory by Overhauling 1.1.1.1 DNS Cache Layout
Cloudflare has freed approximately 100 terabytes of memory across its global network by redesigning the Rust data structures that power its 1.1.1.1 DNS caching platform. The five layout optimizations cut per-entry memory consumption by 56 percent while boosting insertion speeds and lowering lookup latency. The software-driven overhaul demonstrates how small data structure adjustments can yield massive hardware efficiencies at global scale.
By NeuraFeed