If a server has multiple CPU's, by default Calendar Server distributes the HTTP Service (cshttpd processes) and Distributed Database Service (csdwpd processes) across the CPU's.
The service.http.numprocesses and service.dwp.numprocesses parameters determine the actual number of processes that run for each service. By default, these parameters are set to the number of CPU's for the server during installation, but you can reset these values. For example, if a server has 8 CPU's, but you want a cshttpd and csdwpd process to run in only 4 CPU's, set the parameters as:
To disable load balancing, add the service.loadbalancing parameter to the ics.conf file and set it to “no”. Then restart Calendar Server for the change to take effect.