I'm building web application (in this context the client) which talk with a different process (in this context the server) through a namedpipe wcf service (WCF 4).
After reading many articles I was thinking to create a pool of proxy connected to the server (I've read it provide better performance) used in roundrobin.
Each call will be very short, on the server i need to reads and writes simple properties on few objects but this objects are shared so i must use locks in any case. I expect very high concurrency.
Beacuse of the pool, the client will have N session always open with server.
I was wondering what should be the best settings for InstanceContext-ConcurrencyMode between PerSession-Single or SingleInstance-Multiple.
Thank You
My opinion: Do not use custom pool of proxies. Use build-in pooling of connections. You can't fully control connectionPooling in predefined bindings but you have full control in customBinding when using namedPipeTransport.
From implementation perspective in your client - use new proxy for each client's request. Don't share proxies among requests.