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Status Delivered
Workspace CICS Transaction Server for z/OS
Categories Runtime
Created by Guest
Created on Jun 26, 2019

RELATED IDEAS

Real-time display of QR TCB usage and CPU/DISP ratio

Knowledge Center states the following:

https://www.ibm.com/support/knowledgecenter/en/SSGMCP_5.5.0/tuning/dfht3c0020.html

"To calculate the approximate time since CICS statistics were last reset, add the values of "Accum time in MVS™ wait" and "Accum time dispatched". To calculate the percentage usage of each CICS TCB, divide the value of "Accum CPU time/TCB" by the time since CICS statistics were last reset (as calculated earlier).

... If the calculation indicates that a CICS region is more than 70% busy, you are approaching the capacity of the region.".


https://www.ibm.com/support/knowledgecenter/en/SSGMCP_5.5.0/reference/monitoring/dfht3_mon_trandisp.html

"If you want to calculate a transaction's ratio of accumulated CPU time to accumulated dispatch time (CPU/DISP ratio) for the QR TCB, use fields 255 (QRDISPT) and 256 (QRCPUT) in group DFHTASK. These fields show the elapsed time and processor time during which the user task was dispatched on the QR TCB only.".

Nowadays, clients use the above monitoring and statistics data as a reference to check the healthy of their environment and avoid QR TCB saturation and starvation for CPU.

But they want to check the above information real-time, quickly, on peak workload periods to take decision to start additional CICS regions and avoid crisis.

Idea priority Urgent
  • Guest
    Reply
    |     Jun 12, 2020

    This RFE is satisfied by CICS Transaction Server for z/OS V5.6 which is Generally Available today 12th June 2020.
    For more information see the CICS TS V5.6 Knowledge Center https://www.ibm.com/support/knowledgecenter/SSGMCP_5.6.0/reference-messages/cics-messages/DFHDS/DFHDS0102I.html

  • Guest
    Reply
    |     Apr 7, 2020

    This RFE is satisfied by CICS Transaction Server for z/OS V5.6 which is announced today 7th April 2020 and which has a planned availability date of 12th June 2020.
    For more information see the CICS TS V5.6 announcement letter
    https://www-01.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/7/897/ENUS220-077/index.html&request_locale=en

  • Guest
    Reply
    |     Oct 30, 2019

    This is something we would like to address. The RFE is being moved into 'Planned for Future release' status. Please note:
    IBM’s statements regarding its plans, directions, and intent are subject to change or withdrawal without notice at IBM’s sole discretion. Information regarding potential future products is intended to outline our general product direction and it should not be relied on in making a purchasing decision. The information mentioned regarding potential future products is not a commitment, promise, or legal obligation to deliver any material, code or functionality. Information about potential future products may not be incorporated into any contract. The development, release, and timing of any future features or functionality described for our products remains at our sole discretion.

  • Guest
    Reply
    |     Aug 29, 2019

    This is a candidate for a future release

  • Guest
    Reply
    |     Jun 28, 2019

    This RFE is intended to be for both CPSM and non-CPSM customers.
    They need a straightforward information without the need to calculate, customize views, run tools or in-house programs.
    The information also need to be highly granular, providing the QR TCB usage and CPU/DISP ratio every second.
    The accumulated information is not good enough if you have workload batching every 15 seconds in a non-optimized CPSM environment, with very high peaks and deep valleys.

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