[GH-ISSUE #1759] Making some benchmarks about "edge" cases on DomainNames and Reccord Values #758

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opened 2026-03-16 00:09:30 +03:00 by kerem · 3 comments

kerem commented

2026-03-16 00:09:30 +03:00

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Originally created by @darnuria on GitHub (Aug 7, 2022).
Original GitHub issue: https://github.com/hickory-dns/hickory-dns/issues/1759

Writing benches about edge case related to domain names like "valid" but "lot of subdomain" or really big like 253 char domain.
Also writing a benchmarks on edge case related to TXT etc or valid but biiiiig values in records.

Why? Having a quick look on how TrustDNS handle DDos-like traffic (absurd and 'look like real one').

Originally created by @darnuria on GitHub (Aug 7, 2022). Original GitHub issue: https://github.com/hickory-dns/hickory-dns/issues/1759 Writing benches about edge case related to domain names like "valid" but "lot of subdomain" or really big like 253 char domain. Also writing a benchmarks on edge case related to TXT etc or valid but biiiiig values in records. Why? Having a quick look on how TrustDNS handle DDos-like traffic (absurd and 'look like real one').

kerem commented

2026-03-16 00:09:36 +03:00

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@bluejekyll commented on GitHub (Aug 16, 2022):

awesome! thank you.

@bluejekyll commented on GitHub (Aug 16, 2022): awesome! thank you.

kerem commented

2026-03-16 00:09:41 +03:00

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@bluejekyll commented on GitHub (Aug 16, 2022):

btw, I should say, I suspect you will find a lot of low-hanging fruit in your endeavor. Thank you for all the effort!

@bluejekyll commented on GitHub (Aug 16, 2022): btw, I should say, I suspect you will find a lot of low-hanging fruit in your endeavor. Thank you for all the effort!

kerem commented

2026-03-16 00:09:46 +03:00

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@darnuria commented on GitHub (Aug 23, 2022):

Will try to find some time about it in the week or this weekend.

brain dump Ideas

Big numbers of reccords for one domain n > 100 or 1000 (some real work domains have more that 1m reccord idea from "Today our largest zone currently has millions of records." in https://blog.cloudflare.com/dns-build-improvement/
Big domain name like near max char value
Huge TXT with size of "65535 (0xFFFF) bytes long" https://www.ietf.org/rfc/rfc6763.txt
TTL above 32 - 1 (authorized but interpretation is implementation detail on this one)
Absurd amount of label

@darnuria commented on GitHub (Aug 23, 2022): Will try to find some time about it in the week or this weekend. brain dump Ideas - Big numbers of reccords for one domain n > 100 or 1000 (some real work domains have more that 1m reccord idea from "Today our largest zone currently has millions of records." in https://blog.cloudflare.com/dns-build-improvement/ - Big domain name like near max char value - Huge TXT with size of "65535 (0xFFFF) bytes long" https://www.ietf.org/rfc/rfc6763.txt - TTL above 32 - 1 (authorized but interpretation is implementation detail on this one) - Absurd amount of label