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what is the meaning of .NUCLEUS in strobe profile

 
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mahesh419

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Joined: 02 Dec 2011
Posts: 4
Location: India

PostPosted: Thu Jan 05, 2012 11:45 am    Post subject: what is the meaning of .NUCLEUS in strobe profile
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Hi,
I ran the program through strobe tool.
Report shows most of the wait time because of post services(.NUCLEUS)
Code:

                         ** WAIT TIME BY MODULE **
-MODULE   SECTION COMPRESSED   FUNCTION              % RUN TIME    RUN TIME HISTOGRAM  MARGIN OF ERROR:  1.20%
  NAME      NAME    SECTION                                                PAGE   TOTAL   .00     18.00     36.00     54.00     72.00

 .NUCLEUS IEAVEPS1          POST SERVICE                        .00   70.46   .+++++++++++++++++++++++++++++++++++++++
 .NUCLEUS IEAVESLL          SUSPEND LOCK SERVICE      .00    6.65   .+++
                                                                                   -----   -----
 .NUCLEUS TOTALS            MVS NUCLEUS                         .00   77.11

can anybody suggest what is the meaning of .NUCLEUS and how to reduce that wait time ?



Thanks,
Mahesh
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dick scherrer

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

PostPosted: Thu Jan 05, 2012 12:11 pm    Post subject:
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Hello,

Why do you believe the wait time is a bad thing? On every system i've looked at, most programs/processes have lots of wait time. . . Does this process do something similar to a process that does ot have as much wait ime?

Possible the info from this topic could help:
http://www.ibmmainframes.com/about24215.html

Suggest you practice with the Code tag as it will improve the readability of your posts tat contain data, jcl, code, etc.
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Robert Sample

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Joined: 06 Jun 2008
Posts: 8120
Location: East Dubuque, Illinois, USA

PostPosted: Thu Jan 05, 2012 5:53 pm    Post subject:
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NUCLEUS is the core of the operating system.
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don.leahy

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Joined: 06 Jul 2010
Posts: 654
Location: Whitby, ON, Canada

PostPosted: Thu Jan 05, 2012 7:06 pm    Post subject:
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In our shop, the only thing that an application programmer can do to reduce wait time is to run the job during off-peak hours. icon_neutral.gif
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10274
Location: italy

PostPosted: Thu Jan 05, 2012 8:25 pm    Post subject: Reply to: what is the meaning of .NUCLEUS in strobe profile
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without wait there would not be multiprogramming icon_exclaim.gif
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