Optimize PHP pm setting to ondemand

The ondemand setting results in lower memory consumption in idle.

webmails/rainloop/config/php-rainloop.conf

@@ -54,7 +54,7 @@ listen.mode = 0660
 ;             pm.process_idle_timeout   - The number of seconds after which
 ;                                         an idle process will be killed.
 ; Note: This value is mandatory.
-pm = dynamic
+pm = ondemand
 
 ; The number of child processes to be created when pm is set to 'static' and the
 ; maximum number of child processes when pm is set to 'dynamic' or 'ondemand'.
@@ -70,14 +70,27 @@ pm.max_children = 5
 ; The number of child processes created on startup.
 ; Note: Used only when pm is set to 'dynamic'
 ; Default Value: min_spare_servers + (max_spare_servers - min_spare_servers) / 2
-pm.start_servers = 2
+; pm.start_servers = 2
 
 ; The desired minimum number of idle server processes.
 ; Note: Used only when pm is set to 'dynamic'
 ; Note: Mandatory when pm is set to 'dynamic'
-pm.min_spare_servers = 1
+; pm.min_spare_servers = 1
 
 ; The desired maximum number of idle server processes.
 ; Note: Used only when pm is set to 'dynamic'
 ; Note: Mandatory when pm is set to 'dynamic'
-pm.max_spare_servers = 3
+; pm.max_spare_servers = 3
+
+; This sets the maximum time in seconds a script is allowed to run before it is 
+; terminated by the parser. This helps prevent poorly written scripts from tying up 
+; the server. The default setting is 30s.
+; Note: Used only when pm is set to 'ondemand'
+pm.process_idle_timeout = 10s
+
+; The number of requests each child process should execute before respawning. 
+; This can be useful to work around memory leaks in 3rd party libraries. For endless
+; request processing specify '0'.
+; Equivalent to PHP_FCGI_MAX_REQUESTS. Default value: 0.
+; Noted: Used only when pm is set to 'ondemand'
+pm.max_requests = 200