This option specifies the number of seconds added to the delay before a prefork master or worker process is restarted. The restart is initially zero, the prefork backoff increment is added to the delay on each restart up to the value specified by "prefork maximum backoff". Additionally the the backoff for an individual service by using "prefork backoff increment: service name" i.e. "prefork backoff increment:ldap = 2" to set the backoff increment to 2. If the backoff increment is 2 and the maximum backoff is 5. There will be a zero second delay for the first restart. A two second delay for the second restart. A four second delay for the third and any subsequent restarts 10