Are there any experience or profiling data regarding libcurl
performance (cpu used)
built with different configuration options or dealing with different APIs?

For example:
- configured with threads versus no-threads;
- configured without ipv6 only versus with ipv6;
- with different DNS resolving options;
- curl_multi_perform () versus curl_multi_socket ();
etc knowledge, rules.

Thank you in advance.

-- 
Sincerely,
Robert Iakobashvili,
coroberti %x40 gmail %x2e com
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