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// 1d agoINFRASTRUCTURE
Cloudflare’s 1.1.1.1 Cache Frees 100TB
Cloudflare’s Big Pineapple DNS platform cut its cache footprint by 56% through five Rust-level memory optimizations, freeing roughly 100 terabytes across its fleet. The changes also increased cache insert throughput by 43% and reduced lookup latency by 19%.
// ANALYSIS
This is a powerful reminder that at hyperscale, small data-structure decisions become major infrastructure wins.
- –Replacing `Vec` and `String` with boxed slices and strings eliminated unused capacity and allocation waste.
- –A contiguous record buffer improved memory locality while reducing serialization work on lookups.
- –Compact offsets and packed bitflags trimmed struct padding and per-entry overhead.
- –Cloudflare plans to reinvest the freed memory into larger caches, improving hit rates and reducing upstream DNS traffic.
// TAGS
big-pineapple1-1-1-1cloudhosted-servicedevtooldata-tools
DISCOVERED
1d ago
2026-08-27
PUBLISHED
1d ago
2026-08-27
RELEVANCE
5/ 10
AUTHOR
TangerineDream