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

August 27
How we saved 100 terabytes of memory by optimizing 1.1.1.1’s DNS cache

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.

1.1.1.1Deep DiveDNSEngineering
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