Cuong Manh Le e8d1a4604e perf(doq): implement connection pooling for improved performance ...

Implement QUIC connection pooling for DoQ resolver to match DoH3
performance. Previously, DoQ created a new QUIC connection for every
DNS query, incurring significant handshake overhead. Now connections are
reused across queries, eliminating this overhead for subsequent requests.

The implementation follows the same pattern as DoH3, using parallel dialing
and connection pooling to achieve comparable performance characteristics.

2026-03-03 14:22:16 +07:00

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