Benchmark and compare against c-ares

[thedrow]

It would be nice to know how well does this library work when compared to c-ares which is the goto library when you want to resolve DNS async as far as I know. It's also valuable to mention why librdns is (if it really is) more secure, performant, etc than other libraries.

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[vstakhov]

Are there any benchmark suites that I could adopt to test rdns?

[thedrow]

Unfortunately I don't know any DNS client benchmarks and I couldn't find any using a quick google search. There are DNS servers benchmarks like namebench that we can adapt in order to test DNS resolving with different clients.