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Load Library Vs Load PDS

 
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sathyaraj

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Joined: 28 Sep 2007
Posts: 71
Location: India.

PostPosted: Fri Apr 03, 2009 6:07 pm    Post subject: Load Library Vs Load PDS
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Hi,

What is the major difference between Dataset type 'Library' and 'PDS' used to store load modules. I want to know this cos when I use a PDS to call a Module the job is completed in 1/10th of the time it takes to complete with Load library. Any advice would be of a great help.

Thank you
Sathya.
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6258
Location: Mumbai, India

PostPosted: Fri Apr 03, 2009 7:11 pm    Post subject:
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Hi,

Does this link talks about the similar question: http://www.ibmmainframes.com/viewtopic.php?t=22541&highlight=library
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10274
Location: italy

PostPosted: Fri Apr 03, 2009 7:20 pm    Post subject: Reply to: Load Library Vs Load PDS
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... when I use a PDS to call a Module the job is completed in 1/10th of the time it takes to complete with Load library ...

please post evidence of it
and describe the full testing environment

PDSE usually outperforms PDS,
but, just to give you a chance, single module fetch performance might be he same
not 10 times worse



http://publib.boulder.ibm.com/infocenter/zos/basics/index.jsp?topic=/com.ibm.zos.zconcepts/zconcepts_166.htm
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sathyaraj

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PostPosted: Fri Apr 03, 2009 10:12 pm    Post subject:
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OK..

That Link gave me a good idea about PDSE.. Thanks a lot for that..

Actually our Load library has some 20K load modules.. whereas my PDS had 20 something load modules.. Will that make any difference?

Thanks
sathya.
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Robert Sample

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Joined: 06 Jun 2008
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Location: East Dubuque, Illinois, USA

PostPosted: Fri Apr 03, 2009 10:34 pm    Post subject:
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Yeah, that could make a difference.
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