Tuning: Throughput and Latency

Definition

This group includes all the system parameters concerning throughput and latency optimization.

Setting Up System Parameters

You can set up the following system parameters that are available for different instance types in the running SAP CC Core Server system.

Parameters	Summary
ACTIVATION_SCHEDULER_MAX_THROUGHPUT	The maximum number of subscriber accounts per second that can be activated by each rater instance
ALLOWANCE_SERVICE_MAX_THROUGHPUT	The maximum number of requests per second that can be processed by each rater instance when executing operations of the "Allowance Management" Web service
ALLOWANCE_SERVICE_QUEUE_SIZE	The maximum number of operations of the 'Allowance Management' Web service that can be queued by a rater instance
ALLOWANCES_PURGE_SCHEDULER_MAX_THROUGHPUT	The maximum number of provider contracts per second that can be processed by each rater instance during allowance purge operations
BATCH_SERVICE_BATCH_LIMIT_VALUE	The number of counters to update before to split the batch or the number of milliseconds before to split the batch
BATCH_SERVICE_BATCH_MODE	The batch mode used to split the commit of the batch
BATCH_SERVICE_BATCH_REPLIES	The batch reply mode for the batch services
BATCH_SERVICE_QUEUE_SIZE	The maximum number of messages that can be queued when communicating with the batch services (offline charging)
BATCH_SERVICE_REQUEST_BATCH_SIZE	The batch size of requests processed by one thread of the batch services (offline charging services)
CLEANUP_SCHEDULER_MAX_THROUGHPUT	The maximum number of subscriptions per second on which the cleanup process can be applied by each rater
CONNECTION_DISPATCHER_WRITE_BUFFER	Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation
CONNECTION_EXTERNAL_WRITE_BUFFER	Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation
CONNECTION_INTERNAL_WRITE_BUFFER	Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation
CONNECTION_WRITE_BUFFER	Do not use this parameter, except under SAP Support Team supervision or under specific recommendation provided within the SAP CC documentation
DISPATCHER_SERVER_QUEUE_SIZE	The maximum number of messages that can be queued when communicating with the dispatcher services
GUIDER_RESPONSE_HANDLER_BATCH_SIZE	The batch size of responses processed by one thread of the guider response services
GUIDER_RESPONSE_HANDLER_THREAD_COUNT	The number of threads reserved to process the guider instance responses
MULTICAST_SERVER_QUEUE_SIZE	The maximum number of messages that can be queued when communicating with the multicast services of an instance
RATER_RESPONSE_HANDLER_BATCH_SIZE	The batch size of responses processed by one thread of the rater response services
RATER_RESPONSE_HANDLER_THREAD_COUNT	The number of threads reserved to process the rater instance responses
RATING_CONTEXT_CACHE_MAX_SIZE	The maximum number of cached rating contexts that can be reused within a processing thread for convergent charging
STATEFUL_SERVICE_BATCH_LIMIT_VALUE	The number of counters to update before to split the batch or number of milliseconds before to split the batch
STATEFUL_SERVICE_BATCH_MODE	The batch mode used by the SAP CC system to split the commit of the batch
STATEFUL_SERVICE_BATCH_REPLIES	The batch replies mode for the stateful services
STATEFUL_SERVICE_QUEUE_POLICY_HASH_KEY_SIZE	The technical number used to compute the number of request subsets which must be distributed over the threads that are allocated to the stateful service
STATEFUL_SERVICE_QUEUE_POLICY_LEVELS	The list of levels used to distribute the requests over the threads that are allocated to the stateful service
STATEFUL_SERVICE_QUEUE_SIZE	The maximum number of messages that can be queued when communicating with the stateful services (online charging) of a system instance
STATEFUL_SERVICE_REQUEST_BATCH_SIZE	The batch size of requests processed by one thread of the stateful services
STATELESS_SERVICE_BATCH_REPLIES	The batch reply mode for the stateless services
STATELESS_SERVICE_QUEUE_SIZE	The maximum number of messages that can be queued when communicating with the stateless services (online stateless rating) of a system instance
STATELESS_SERVICE_REQUEST_BATCH_SIZE	The batch size of requests processed by one thread of the stateless services