in order to avoid group problems, only one worker process is used to listen, and it is controlled by accept_mutex (the current version seems to have a new processing method turned off by default, so let"s just say I"m talking about turning on the old version of accept_mutex), but is there any difference between this and directly dealing with the main process? How to take advantage of multi-core advantage? All I can think of is that a worker will not all break down, just a little bit more robust, but from the beginning to the end, there is only one worker dealing with all the monitoring. (the last one who got the lock will hand over all the fd),. In my opinion, it just enhances the robustness. Many people on the Internet say that they have improved concurrency and made use of multi-core advantages. How should I understand it?.