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Status Not under consideration
Workspace z/TPF Product Family
Categories z/TPF
Created by Guest
Created on Oct 1, 2014

RELATED IDEAS

ZMOWN should track core usage and track high water marks

1Mb frame usage and 4K frame usage is not included in ZMOWN statistics. This means that ZMOWN is unable to provide a breakdown of use these critical system resources by owner name. This information would provide critical insight in trouble shooting, performance testing, capacity planning, and application benchmarking.

The following metrics should be added to ZMOWN, at least when block and heap check mode are off:
1) number of 1Mb frames used to back 31 bit ecb heap
2) number of 1Mb frames used to back 64 bit ecb heap
3) total number of 1Mb frames attached to the ECB
4) total number of 4K frames attached to the ECB.

We think it's very beneficial to be able to differentiate between 1Mb frames used for the 2 types of ecb heap usage and "other" usage. A single count of 1Mb frames is not granular enough.

In addtion, while it may not make sense for all metrics, particularly since the owner name may change during the ECB's life and therefore the same ECB may stroke coutners in different owner name buckets, there could be benefit in maintaining a high water mark for ZMOWN statistics.

Idea priority High
  • Guest
    Reply
    |     Mar 15, 2023
    IBM intends to add this information to Real-time runtime metrics collection (RTMC) as part of idea TPF-I-991
    (https://ibm-z-software-portal.ideas.ibm.com/ideas/TPF-I-991).
    IBM does not intend to add this information to ZMOWN in the foreseeable future.
  • Guest
    Reply
    |     Apr 19, 2019

    IBM has modified some of the information in this request. Please contact us if you have any questions.

  • Guest
    Reply
    |     May 5, 2016

    PJ42754 delivered several requested counters. However we still see significant benefit in providing
    1) # of attached 1Mb frames used to back 31bit ECB heap
    2) # of attached 1Mb frames used to back 64bit ECB heap
    This would be in addition to the total number of attached 1Mb frames added by PJ42754.

  • Guest
    Reply
    |     Oct 14, 2015

    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/TPF

    For recording keeping, the previous attributes were:
    Brand - WebSphere
    Product family - Transaction Processing
    Product - z/TPF

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