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MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » workflow capacity

workflow capacity

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koko

Posted: Wed Mar 31, 2004 7:14 am Post subject: workflow capacity

Master

Joined: 26 Sep 2003
Posts: 206

How can I see as to how many UPES messages can workflow handle per a unit of time. In other words is there a doc to do tune the workflow--
server instances' queue sizes, table spaces etc.
_________________
Thanks

Koko

jmac

Posted: Wed Mar 31, 2004 8:18 am Post subject:

Jedi Knight

Joined: 27 Jun 2001
Posts: 3081
Location: EmeriCon, LLC

Support pack WP01 contains the MQWF Performance information. It is available using the following link:

http://www-306.ibm.com/software/integration/support/supportpacs/
_________________
John McDonald
RETIRED

koko

Posted: Fri Apr 09, 2004 10:03 am Post subject:

Master

Joined: 26 Sep 2003
Posts: 206

May I know the internal working of the workflow code. I would like to know how the blocks and subprocesess work in workflow.
say if I invoke 10 instances and start working on them. How does workflow use the system resources. Does it spawn one thread for one instance and stops processing others once it reaches a limit on the threads...
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Koko

manoj

Posted: Fri Apr 09, 2004 10:40 am Post subject:

Master

Joined: 30 Jan 2002
Posts: 237
Location: Virgina

I think it is not correct to compare MQ Workflow "business processes" as some kind of thread which is running for some time.
Rather all the data associated with a process is saved in to the database.
In a "Pull" client environment every time you refersh(access) your process instance database queries are fired to pull the process information from the database at that point of time....Not sure about how the "Push" client works.

So in my opinion the cost associated with a process is for instantiating it largely and may be for correlating it with its parent proces(s).....assuming activity implementations, global container updates etc.. are out of scope for this discussion

There's a document which describes (don't remember the URL) how to calculate the cost in BWU (Basic Workflow Unit)

You have to be aware that for some situations BLOCK is a better option and some other occassions SUBPROCESS is better.....It purely depends on your process model
_________________
-manoj

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