Traditional Thread architecture Microsoft )救中国研究院 I thread to receive and dispatch SMTP request 64 worker threads doing Worker Parse SMTP headers Thread SMTP Request Parse sMTP bodies Receiver (Other workers) Socket Local delivery Worker Thread Routing All in the same thread sequentiallyTraditional Thread Architecture SMTP Request Receiver (Socket) Worker Thread Worker Thread (Other workers) • 1 thread to receive and dispatch SMTP request • 64 worker threads doing: – Parse SMTP headers – Parse SMTP bodies – Local delivery – Routing – All in the same thread sequentially…