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| MQSI Broker CPU bound |
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| iris_young |
 Posted: Fri Apr 26, 2002 6:26 pm Post subject: |
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Newbie
Joined: 25 Apr 2002
Posts: 2
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Hi Folks,
AFAIK, the MQSI broker is CPU bound. That means if I have a 4-way machine, if I only havea single broker, only 1 CPU can be utilized. However, if I have multiple (e.g. 4) execution groups in that single broker, will the execution groups strike across 4 CPUs or bound to the CPU used by the broker?
Regards,
Arthur |
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| kolban |
| Posted: Sat Apr 27, 2002 4:05 am Post subject: |
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Grand Master
Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA
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| A broker is (in my mind) a collection of Execution Groups. An Execution Group has a one to one correspondance with a process ... so if you have 4 CPUs and 4 execution groups in 1 broker, you will find that they distribute their work across all the CPUs. |
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| zpat |
| Posted: Sun Apr 28, 2002 3:37 am Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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There is an environment value to do with processor affinity that you should set if using 2.0.1, IBM have corrected the default setting on 2.0.2
Look at the performance support pacs written by Tim Dunn and there are also articles on MQSI tuning in MQ Update http://www.xephon.com/mq (also by Tim). |
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