关于nginx里面maxclients的计算方法

QUOTE:

worker_connections
Syntax: worker_connections number
Default:
The worker_connections and worker_proceses from the main section allows you to calculate maxclients value:
max_clients = worker_processes * worker_connections
In a reverse proxy situation, max_clients becomes
max_clients = worker_processes * worker_connections/4
Since a browser opens 2 connections by default to a server ,and nginx uses the fds (file descriptors) from the same pool to connect to the upstream backend .