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Performance analysis tool in Rexx

 
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awyn

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Joined: 11 Feb 2008
Posts: 49
Location: chennai

PostPosted: Mon Jul 07, 2008 4:10 pm    Post subject: Performance analysis tool in Rexx
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hi,
I have to develop a tool in rexx about performance monitoring or analyssing the MVS subsytem, how can i do it, wat are the areas i should analyse in the MVS system to do the performance monitoring
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10274
Location: italy

PostPosted: Mon Jul 07, 2008 4:17 pm    Post subject: Reply to: Performance analysis
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Just curious, what is the business reason to develop such a tool when there are zillions of them available ??

mild advice/recommendation

before writing Your own performance monitoring tool, learn to use and understand the existing ones ( RMF for example )
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awyn

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Location: chennai

PostPosted: Mon Jul 07, 2008 4:38 pm    Post subject:
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SInce all the tools are licennsed specific i want to develop my own tool
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Robert Sample

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

PostPosted: Mon Jul 07, 2008 4:46 pm    Post subject:
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This is a very ambitious project. There's a lot to z/OS and depending on how detailed you're wanting to get, a tremendous amount of work is required to analyze system performance. You'd want to start by understanding the SMF record types, so find the SMF manual and read it thoroughly to understand them.
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dick scherrer

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Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Mon Jul 07, 2008 8:28 pm    Post subject:
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Hello,

Quote:
I have to develop a tool in rexx about performance monitoring or analyssing the MVS subsytem
Who provided the requirement? What is the scope of the requirement. Do you need to look at things that "have happened" or things that "are happening"? What sort of output is required?

How strong are you in assembler? How familar with operating system internals are you (i.e. control blocks, processes, SMF record formats/content etc)?

Robert makes a very good point. . .
Quote:
This is a very ambitious project.

And i believe, starting with part of the smf data will be to your advantage before jumping into real-time.
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Anuj Dhawan

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

PostPosted: Tue Jul 08, 2008 2:37 pm    Post subject:
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I agree, I had been to such a requirement once (& I said a big NO) and I'm pretty much sure this is not a client requirement at all; just some PM must have come up with such a "garbage" idea, just to show he can "think"...
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expat

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Joined: 14 Mar 2007
Posts: 8593
Location: Back in jolly old England

PostPosted: Tue Jul 08, 2008 6:33 pm    Post subject:
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Suggest that your site purchases SAS & MXG and save yourself years of heartache.
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