MQSeries.net :: View topic - Topic/subscribe

mago · Posted: Wed Apr 02, 2025 5:51 am Post subject: Topic/subscribe - MQ

Hello, everyone.

We are currently dealing with a performance issue related to a high-traffic topic on MQ for z/OS, processing millions of messages per day. The environment also includes around 30 subscriptions, each targeting a different queue.

The application is experiencing significant latency during PUT operations to the topic.

I?ve been searching for any IBM documentation or best practices specifically related to performance tuning and configuration of TOPICs and SUBSCRIPTIONS on MQ for z/OS, but so far haven?t found anything relevant. Notably, the MP16 redbook (IBM MQ for z/OS ? Capacity Planning and Tuning) doesn?t seem to cover this scenario.

If anyone has references, insights, or experience with similar setups, your input would be greatly appreciated.