How we saved 100 terabytes of memory by optimizing 1.1.1.1’s DNS cache

Cloudflare Version 1 original current

Imported from official source

Five Rust-level memory optimizations to the DNS cache layout of Big Pineapple cut per-entry memory by 56%, freeing approximately 100 TB of memory across Cloudflare's fleet.

This version

Version
1 of 1
Recorded
September 18, 2026 11:34
Change
Initial
Content hash
d04b86311addee39e5cb10f6b5892d4b
All versions
Revision history

Officially records where a publication came from, not whether it is true. Imported records are reproduced from an organization's own official source.