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Mercator maps running long time in mainframes

 
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gbalaa_007

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Joined: 24 May 2007
Posts: 10
Location: Los angeles, CA

PostPosted: Fri Aug 01, 2008 4:13 am    Post subject: Mercator maps running long time in mainframes
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we have IBM Websphere Datastage (aka Mercator map 6.7) running in Mainframe. Which takes 12 hours to complete a map where as NT takes only 40 mins.

Is there any performance tune can be done to run the map in shorter time.

Is any thing can be done in jobclass or jobcard parameter to tune this up.

will post more information in minutes
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Moved: Fri Aug 01, 2008 4:52 am by superk From JCL to Other Mainframe Topics
dick scherrer

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Joined: 23 Nov 2006
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Location: 221 B Baker St

PostPosted: Fri Aug 01, 2008 5:28 am    Post subject:
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Hello,

Quote:
Is any thing can be done in jobclass or jobcard parameter to tune this up
Probably not unless other mainframe performance is to suffer.

The best start to tuning is to determine what resources are being used and then determine if there are ways to reduce the usage.

You need to find how much cpu and i/o is being used. Your system support or performance monitoring people should be able to help with this.

One thing to keep in mind that when this is run on the NT system, it is probably the only process running that uses any significant amount of cpu. The NT server may also have as much cpu power as the mainframe you are using. The mainframe is most likely sharing the cpu and the i/o channels/devices with many concnrrent active processes.

Does this process use some standard database or is the file structure custom to the product?
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dick scherrer

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PostPosted: Fri Aug 01, 2008 5:54 am    Post subject:
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Hello,

Please post the jcl from the problem step(s).

Something has come to mind. . .
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