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MQSeries.net Forum Index » General IBM MQ Support » High CPU LOAD for amqzlaa0 processes

High CPU LOAD for amqzlaa0 processes

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tsobanski

Posted: Wed Feb 02, 2005 1:06 am Post subject: High CPU LOAD for amqzlaa0 processes

Apprentice

Joined: 27 Sep 2004
Posts: 42

Hi
I have problem whith high CPU LOAD for amqzlaa0 processes. On this server (HP-UX 11.11 2 CPU, MQ 5.3 CSD04) are runing 2 QMGRS. each qmgr have 3 amqzlaa0 proceses. Does enybody know how can I tune qmanager or HP-UX to reduce CPU LOAD ???

BR
tsobanski

Nigelg

Posted: Wed Feb 02, 2005 3:21 am Post subject:

Grand Master

Joined: 02 Aug 2004
Posts: 1046

See Support pack MP03, multi-threaded agents. You can choose how many threads will run in each agent; the default on HPUX is 50 threads.
The CPU load may be caused by your apps; an easy way to drive up the agent CPU is to make polling MQGET calls, that is, continuous calls to MQGET with a very small (or zero) MQGMO.WaitInterval when there are no msgs on the queue.

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