Use poll_recv_many for processing commands to be written to the nats server #1189
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Tokio 1.36 exposed
Receiver::poll_recv_many
, which allows polling multiple items at once from an mpsc channel. Considering that our write buffer already has a lenient capacity limit, and the benchmarks show that the reduced overhead is worth it, this PR makes the connection handler poll 16 commands at once instead of just 1.Benchmark results (Ryzen 5900X)