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MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » Performance issue with WF

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tsrisudh
PostPosted: Wed Apr 04, 2007 5:04 pm    Post subject: Performance issue with WF Reply with quote

Centurion

Joined: 11 Aug 2005
Posts: 113
Hi,

We have MQWF 3.6 on AIX and MQ 5.3

The WF system when load tested is peaking to 90% utilization, most of the memory is consumed by db2sysc process.

The response times are fine but it is continuously at this utilization rate.

we have run the runstats on the WF DB2 and a rebind.

Anyone has any idea why DB2 is taking so much time.

The DB2 is also in the same machine as the WF and so is the MQ

Any inputs would be appreciated

thanks
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jmac
PostPosted: Wed Apr 04, 2007 6:01 pm    Post subject: Reply with quote

Jedi Knight

Joined: 27 Jun 2001
Posts: 3081
Location: EmeriCon, LLC
Can your DBA tell you what table is being hit? If so maybe an index is in order.
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Mattrix
PostPosted: Wed Apr 18, 2007 8:39 am    Post subject: Reply with quote

Novice

Joined: 01 Mar 2006
Posts: 11
Check if you have dynamic assignments in the processes that you have in your applications. This might reduce the perfirmance of DB2 if you are getting many orders to that process.
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tsrisudh
PostPosted: Wed Apr 18, 2007 12:43 pm    Post subject: Reply with quote

Centurion

Joined: 11 Aug 2005
Posts: 113
What do you mean by dynamic assignments?

We got a lot of load reduced on the WF by increasing the bufferpool on the DB2 and also by creating an index on the GC table.

But still i would like to have more recommendations which would help it better.
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