Modify config.csp of the drogon_ctl command

drogon_ctl/templates/config.csp

@@ -47,8 +47,9 @@
     }
   ],*/
   "app": {
-    //threads_num:num of threads,1 by default
-    "threads_num": 16,
+    //threads_num:the number of IO threads,1 by default, if the value is set to 0, the number of threads
+    //will be the number of processors.
+    "threads_num": 1,
     //enable_session:false by default
     "enable_session": false,
     "session_timeout": 0,
@@ -132,4 +133,4 @@
     //of the connection without read or write
     "idle_connection_timeout": 60
   }
-}
+}