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Status Not under consideration
Workspace z/OS
Categories LE
Created by Guest
Created on Apr 10, 2017

RELATED IDEAS

The clock() function that determines process time on z/OS needs to be increased or reset to zero after it reaches max value

We have a PMR 29022,082,000 opened with IBM Integration Bus V10 support about SMF CPU time not reporting correctly for some message flows. L3 found that the clock () function they were using to calculate processor time hit max value so they could not calculate CPU time correctly. The next two paragraph's come from the PMR we opened.

So currently, there are no alternatives to the clock() function that
determine the process time on a per thread basis on z/OS. And this
function has limitations, i.e., once the max value, which is relatively
small, is reached, it does not reset to 0.

Ideally we need a new version of clock() that caters for a much larger
time type value that is more in keeping with 64-bit applications, or a
change in behaviour in the current clock() function so that once the
processor time max value is reached, this is reset to 0. Then from an
IIB point of view, there would only be one SMF time interval with a
value of 0, the clock would reset and we would be able to report the
delta time between intervals successfully after that.

Idea priority High
  • Guest
    Reply
    |     Dec 27, 2022
    This item is a valid requirement but unlikely to be given high enough priority to be placed into the product plan. If this requirement is high value, please re-open it, or open a new requirement.
  • Guest
    Reply
    |     Apr 14, 2017

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - z Systems Software
    Product - z/OS
    Component - LE
    Operating system - IBM z/OS
    Source - None

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - z Systems Software
    Product - z/OS
    Component - BCP_General
    Operating system - IBM z/OS
    Source - None

  • Guest
    Reply
    |     Apr 13, 2017

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - z Systems Software
    Product - z/OS
    Component - BCP_General
    Operating system - IBM z/OS
    Source - None

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - z Systems Software
    Product - z/OS
    Component - General
    Operating system - IBM z/OS
    Source - None

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