How to Optimize Performance of Real-Time SignalR Applications in .NET Core?

Question

I am developing a real-time application using SignalR in .NET Core and seeking advice on optimizing its performance for handling a large number of concurrent connections. What are the strategies and best practices for optimizing real-time SignalR applications?

Answer 1

Optimize the transport type, prefer WebSockets where possible. Use message pack protocol for smaller payloads. Implement backplane for scale-out scenarios, consider using Azure SignalR Service for automatic scaling. Optimize client reconnection logic and limit the number of concurrent connections. Monitor and tune server performance, and consider using streaming for large messages.

Answer 2

Signal/r requires a persistent connection on the server. So your server needs to manage a large number of concurrent connections. To scale out, your load balancer needs to support server affinity, or the client can not reconnect on a network interruption.

If you need large scaling you may want to look azure signal/r.