Increase work threads

Hi everyone, I am building a dedicated server with Unet LLAPI, and with the recent update of Unet, now we can increase the thread pool size to allow I/O been processed faster and support more connections. But is this the correct way of using it?

Code (CSharp):

1.         GlobalConfig GC = new GlobalConfig();      
2.         GC.ThreadPoolSize = 99;
3.         NetworkTransport.Init(GC);

I think the pool size is be based on system spec? Does anyone know how to measure the pool size based on system spec? Also, I have a dumb question: with this feature, is it practical to build a dedicated server could handle more than 50k connections?