PH35560: DFHDS0102 THE CURRENT CPU / DISPATCH RATIO FOR THE QR TCB IS NNN.NN%.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The issuance of the message "DFHDS0102 The current CPU /
  dispatch ratio for the QR TCB is nnn.nn%" is issued for less
  then 100% CPU/DISP ratio and for 100% CPU/DISP Ratio. The 100%
  CPU / dispatch ratio indicates CPU/DISP ratio is fine.  It is
  the less than 100% which would need to be evaluated.  A better
  use of this message, DFHDS0102, is if it were issued only when
  the QR TCB CPU / Dispatch ratio was less than 100%.  This would
  then alert of CPU / dispatch ratio for the QR TCB not running at
  100 percent.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users                                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Unable to suppress message DFHDS0102    *
  *                      for development regions.                *
  ****************************************************************
  Too many DFHDS0102 messages are being issued especially when
  the region is not busy and there is no ability to prevent these
  messages from being issued.
  
  Additional Keywords: msgDFHDS0102 DS0102 msgDFHDS0104 DS0104
  

Problem conclusion

• The algorithm has been improved to only issue the message if
  the QR TCB has been dispatched for more that 5% of the current
  interval between now and the previous DFHDS0102 message.
    In addition, the user is now able to prevent these messages
  from being issued by adding the following to the system
  initialisation table
  INITPARM=(DFHQRCPU='00')
  Message DFHDS0102 has been changed to include the dispatch /
  interval ratio for the QR TCB
  
  The CICS Transaction Server Messages and Codes have been
  updated as follows
  
  Message DFHDS0102 has been changed to read
  DFHDS0102 date time applid The current QR TCB CPU / dispatch
  ratio is nn.nn% and the dispatch / interval ratio is nn.nn%.
  
  Explanation
  The ratio (expressed as a percentage) of the accumulated CPU
  time to the accumulated dispatch time for the QR TCB and also
  the dispatch / interval ratio of the QR TCB. Subject to being
  reset, these numbers provide the average utilization and the
  average saturation of the QR TCB for the current interval.
  If the message states that the CICS statistics have been reset,
  the ratios will not be a true reflection for the current
  interval.
  
  SystemAction
  Processing continues. The suspend interval uses the default
  value of 5 minutes.
  
  User Response
  The ratios are dependent on the CICS workload and machine
  utilization for the current interval and are for information
  only.
  Note that this message is not issued if the dispatch / interval
  ratio for the current interval is less than 5 percent.
  See <xref keyref="explaining.the.qr.tcb.ratio"/> for advice on
  how to interpret these ratios.
  This message is issued, by default, every 5 minutes. To change
  the frequency of this message specify system initialization
  parameter INITPARM=(DFHQRCPU='nn') as a system initialization
  parameter where 'nn' is a number between 01 and 59 minutes. The
  message can be suppressed by specifying a value of '00'.
  
  Module
  DFHQRCPU
  
  Message DFHDS0104 has been added
  DFHDS0104 date time  applid The INITPARM value specified for
  module DFHQRCPU is zero. DFHDS0102 messages will not be issued.
  
  Explanation
  A value of zero has been specified on the
  INITPARM=(DFHQRCPU='nn') system initialization parameter.
  
  SystemAction
  Transaction CQPR terminates and no DFHDS0102 messages will be
  issued for this run of CICS.
  
  UserResponse
  System initialization parameter INITPARM=(DFHQRCPU='00') has
  been specified, indicating that the user does not want to
  monitor the utilization of the QR TCB.
  
  Module
  DFHQRCPU
  

Temporary fix

Comments

• ×**** PE21/07/26 FIX IN ERROR. SEE APAR PH39269  FOR DESCRIPTION
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UI76165

Modules/Macros

• DFHMEDSC DFHMEDSE DFHMEDSK DFHQRCPU
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R300 PSY UI76165

     UP21/07/02 P F107

Fix is available

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