Nice write-up.
Regarding the load tests tool, I suggest considering NBomber, a .NET tool for load testing. It's a modern and flexible .NET load-testing framework for Pull and Push scenarios, designed to test any system regardless of a protocol (HTTP/WebSockets/AMQP, etc) or a semantic model (Pull/Push).
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Nice write-up.
Regarding the load tests tool, I suggest considering NBomber, a .NET tool for load testing. It's a modern and flexible .NET load-testing framework for Pull and Push scenarios, designed to test any system regardless of a protocol (HTTP/WebSockets/AMQP, etc) or a semantic model (Pull/Push).