Document send queue listener options

Document the new 'max_send_queue_delay' and 'max_send_queue_size'
options.

Author: weiss

content/admin/configuration/listen-options.md

@@ -187,6 +187,25 @@ Specify the maximum payload size in bytes.
 It can be either an integer or the word `infinity`.
 The default value is `infinity`.
 
+## max_send_queue_delay
+
+*Integer*
+
+Specifies the maximum number of milliseconds to queue an outgoing stanza or
+stream management element. Setting this option to a positive (non-zero) number
+allows for batching up multiple XML elements into a single TCP packet in order
+to reduce the TCP/IP overhead. The default value is `0`, which disables
+queueing.
+
+## max_send_queue_size
+
+*Size*
+
+Specifies the maximum number of elements to add to the send queue. The default
+value is `10`. Note that this option has no effect if `max_send_queue_delay`
+isn't set to a value larger than `0`. Setting this option to `0` disables
+queueing.
+
 ## max_stanza_size
 
 *Size*

content/admin/configuration/listen.md

@@ -79,6 +79,8 @@ Options:
 [ciphers](/admin/configuration/listen-options/#ciphers),
 [dhfile](/admin/configuration/listen-options/#dhfile),
 [max_fsm_queue](/admin/configuration/listen-options/#max-fsm-queue),
+[max_send_queue_delay](/admin/configuration/listen-options/#max-send-queue-delay),
+[max_send_queue_size](/admin/configuration/listen-options/#max-send-queue-size),
 [max_stanza_size](/admin/configuration/listen-options/#max-stanza-size),
 [protocol_options](/admin/configuration/listen-options/#protocol-options),
 [send_timeout](/admin/configuration/listen-options/#send-timeout),
@@ -123,6 +125,8 @@ Options:
 [global_routes](/admin/configuration/listen-options/#global-routes),
 [hosts](/admin/configuration/listen-options/#hosts),
 [max_fsm_queue](/admin/configuration/listen-options/#max-fsm-queue),
+[max_send_queue_delay](/admin/configuration/listen-options/#max-send-queue-delay),
+[max_send_queue_size](/admin/configuration/listen-options/#max-send-queue-size),
 [max_stanza_size](/admin/configuration/listen-options/#max-stanza-size),
 [password](/admin/configuration/listen-options/#password),
 [protocol_options](/admin/configuration/listen-options/#protocol-options),