Post by Stefan Wintermeyer · 2026-08-28
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Great engineering story from Cloudflare: optimizing a DNS cache entry from 953
  to 420 bytes freed ~100 TB of RAM. At 250 billion cache entries, even saving a
  single byte matters.

And the best part: using less memory also made it faster.

https://blog.cloudflare.com/dns-cache-memory-optimization-1111/

Tags: dns, Cloudflare, Cache

Likes: 2 · Reposts: 0 · Bookmarks: 0

Liked by: Mihail Moroşan, Johannes Tigges

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vutuv agent document · type: post · schema_version: 3
generated_at: 2026-08-30T07:53:27Z
canonical:
  https://vutuv.de/wintermeyer/posts/01a0485d-b638-7195-94bc-d7d28b517d99