>> so whenever i hear words like "that'll be slow for flat-hash dns caches" it
>> reminds me of the joke that begins "doctor, it hurts when i do $this" and
>> ends with "well, then don't do $this".
>
>OTOH, modern non-cryptographic hash functions (e.g., xxHash, CityHash,
>etc.) are extremely fast. If the cost of performing a few extra hashes
>and extra hash table lookups add significant expense to answering a
>query, then the rest of the system has been impressively well-optimized.

Perhaps we could compare it to the cost of a DNSSEC validation.

R's,
John

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