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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » capacity planning & limitations

capacity planning & limitations

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cute_pav

Posted: Wed May 07, 2003 4:33 pm Post subject: capacity planning & limitations

Acolyte

Joined: 04 Jan 2002
Posts: 65
Location: usa

Hi,
I would like to know optimum limits with all your experiences

1.how many execution grops that broker can hold and its dependecies
2.how messageflows that execution group can hold and its dependencies
3.Is there any tuninig parameters that relates to increase its limits and for its performance.
4.Any document that deals abt these aspects for reference.

Please share your views with implementation experiences!!!

thanks in advance.

pavan

muneetb

Posted: Thu May 08, 2003 6:30 am Post subject:

Newbie

Joined: 25 Oct 2002
Posts: 8

Pavan--

Take a look at the performance report specific to the platform you plan on using. Here is the link to the reports:

http://www-3.ibm.com/software/integration/support/supportpacs/perfreppacs.html

Good luck!

--Muneet

cute_pav

Posted: Thu May 08, 2003 8:46 am Post subject:

Acolyte

Joined: 04 Jan 2002
Posts: 65
Location: usa

hi, muneet,

Thanks for your details.

pavan

zpat

Posted: Thu May 08, 2003 11:40 pm Post subject:

Jedi Council

Joined: 19 May 2001
Posts: 5866
Location: UK

MQSI v2 is scaleable. I don't know of any limits on the number of execution groups other than you won't want to manage a huge number.

We use a 12 CPU P680 and providing you have at least as many active execution groups as processors - you can get 100% of the hardware performance.

We use ESS for fast disks. At least use Fast Write cached controllers.

MQ 5.2 or later is recommended for improving queue performance.

If you have MQSI 2.0.1 or lower - change the default processor affinity setting from ON to OFF.

There are some tuning parameters in DB/2 to look at more than in MQSI which does not really have any. Also check the JVM settings (eg heap size). You can also check out standard MQ queue manager settings.

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