Sun Java System Message Queue 4.2 Developer's Guide for Java Clients

Durable vs. Nondurable Subscriptions

Subscribers to a topic destination have either durable and nondurable subscriptions. Durable subscriptions provide increased reliability at the cost of slower throughput for the following reasons:

We compared performance for durable and non-durable subscribers in two cases: persistent and nonpersistent 10k-sized messages. Both cases use AUTO_ACKNOWLEDGE acknowledgment mode. We found a performance impact only in the case of persistent messages, which slowed messages conveyed to durable subscribers by about 30%.