-Specify a user id and group id for a specific child process. The number of
-children is set by the NumServers
-directive. For example, the default value for NumServers is 5 and that means
-children ids 1,2,3,4 and 5 are available for assigment. If a child does not
-have an associated ChildPerUserID, it inherits the Specify a user id and group id for a number of child processes. The third
+argument, num_children, is the number of child processes to start with the
+specified user and group. It does not represent a specific
+child number. If the total number of child processes, found by totaling all of
+the third arguments to all ChildPerUserId directives in the config file, is
+less than NumServers, then all
+remaining children will inherit the User and Group settings from the main server