01Cloudflare · performance
How we halved DNS build delay and cut memory use by 85%
Cloudflare's DNS propagation pipeline suffered from scalability bottlenecks when handling large zones with tens of millions of records and complex zone settings. The team implemented a targeted build planner and unified scheduler to compute only the necessary changes safely. This reduced peak memory usage by 85% and cut DNS build delays in half.
DEPTH ■■■■■18 min readtoday
