HFPBK Back to Index page
 
Prolog 
Control Block Contents 
   HFPBK DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  HFPBK Prolog Top of page
 
 NAME       : HCPHFPBK
 DESCRIPTION: Monitor Processor Domain Hi-Freq Sample Data Area
 DSECT      : HFPBK
 FUNCTION   : Control block for processor-domain high-frequency
              sample data.  There is a separate HCPHFPBK for
              each DSVBK in the system. Data collected here are
              later transferred to the processor-domain monitor
              record, MRPRCDHF.
 LOCATED BY : MNDHF_PRC_DATA
 CREATED BY : HCPMOPIN
 DELETED BY : HCPMOPTM
 REFERENCES : none
 SERIALIZED : MNDHF_PRC_LOCK
 RELOCATION CONSIDERATIONS : None
 COMPATIBILITY AND MIGRATION CONCERNS : none
 
 
  HFPBK Control Block Content Top of page
 

 HFPBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure HFPBK Monitor Processor Domain Hi-Freq Sample Data Area 0000 0 Bitstring 12 HFPARRAY (129) Array of counters, 1 per DSVBK 0000 0 Signed 4 HFPCOUNT Number of times DSVBK was examined 0004 4 Signed 4 HFPUSERZ Number of times there were no users in the DSVBK 0008 8 Signed 4 HFPUSERC Accumulated number of users in the DSVBK 0000000C HFP$ARRAY_END * End of an array entry 0000060C HFP$END * End of HFPBK 000000C2 HFPSIZE (HFP$END-HFPBK+7)/8 HFPBK size in doublewords
 
 
  HFPBK Storage Layout Top of page
 
          
*** HFPBK - Monitor Processor Domain Hi-Freq Sample Data Area
*
*     +-------------------------------------------------------+
*   0 |                                                       |
*     =                       HFPARRAY                        =
*     |                           +---------------------------+
*     |                           | 60C
*     +---------------------------+
*
*** HFPBK - Monitor Processor Domain Hi-Freq Sample Data Area
          
*** Overlay for HFPARRAY in HFPBK
*
*     +---------------------------+---------------------------+
*   0 |         HFPCOUNT          |         HFPUSERZ          |
*     +---------------------------+---------------------------+
*   8 |         HFPUSERC          | C
*     +---------------------------+
*
*** Overlay for HFPARRAY in HFPBK
 
 
  HFPBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
HFP$ARRAY_END  0008 0000000C
HFP$END        0008 0000060C
HFPARRAY       0000
HFPCOUNT       0000
HFPSIZE        0008 000000C2
HFPUSERC       0008
HFPUSERZ       0004
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:51:10 EDT.
Copyright IBM Corporation, 1990, 2022