6.4. JMS Transactions

You can improve efficiency of the broker using JMS transactions, because JMS transactions enable the broker to process messages in batches. That is, a batch consists of all the messages a producer sends to the broker before calling commit. Sending messages in batches improves the performance of the persistence layer, because the message store is not required to write the batched messages to disk until commit is called. Hence, the message store accesses the file system less frequently—that is, once per transaction instead of once per message.