RECEIVING - time spent in the JMS provider's MessageConsumer.receive() method call for each message received.

MAPPING - time spent mapping each JMS message to the corresponding Apama event. If maxExtraMappingThreads is set to a non-zero value then this is the time spent waiting for remaining message mapping jobs to complete on their background thread(s) at the end of each batch.

DB_WAIT - (only for reliable receive modes) time spent waiting for background reliable receive database operations (writes, deletes, etc) to complete, per batch.

DB_COMMIT - (only for reliable receive modes)time spent committing (synching) received messages to disk at the end of each batch.

ENQUEUING - (only for BEST_EFFORT receive mode) time spent adding received messages to each public context't input queue.

JMS_ACK - time spent in the JMS provider's Message.acknowledge() method call at the end of processing each batch of messages.

R_TIMEOUTS - the total time spent waiting for JMS provider to complete MessageConsumer.receive() method calls that timed out without returning a message from the queue or topic, per batch. Indicates either that Apama is receiving messages faster than they are added to the queue or topic or that the JMS provider is not executing the receive (timeout) call very efficiently or failing to return control at the end of the requested timeout period.

FLOW_CONTROL - the total time spent (before each batch) blocking until the EPL application increases the flow control window size by calling JMSReceiverFlowControlMarker.updateFlowControlWindow(...). In normal usage, this should be negligible unless some part of the system has failed or the application is not updating the flow control window correctly.

TOTAL - aggregates the total time taken to process each batch of received messages.