Thanks for the response. Regarding the queue, yes, obviously there will be a backlog if incoming requests are 1/second and the responses are 0.5 or less/second. The reason I asked the question was to understand the entire ecosystem, given I'm not very familiar with the web servers like Netty and Jetty and whether they offer any multithreading or multiple "web workers" or any other facilities to accommodate and to simultaneously handle multiple incoming requests.