Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

#### HFPBK

Prolog

Control Block Contents
HFPBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### HFPBK Prolog

     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 processor in the system. Data collected here are
                  later transferred to the processor-domain monitor
                  record, MRPRCPRP.
     LOCATED BY : PLSHFDAT
     CREATED BY : HCPMOPIN Processor Domain High-Frequency Sample
                  Initiation
     DELETED BY : HCPMOPTM Processor Domain High-Frequency Sample
                  Termination
     REFERENCES : none
     SERIALIZED : PLSHFLCK lockword in its respective PLSBK
     NOTES      : none

#### HFPBK Control Block Content

#### HFPBK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      HFPBK          Monitor Processor Domain Hi-Freq Sample Data Area
    0000    0 Signed       4 HFPCOUNT       Number of times PLDV was examined
    0004    4 Signed       4 HFPUSERZ       Number of times there were no
                                            users in the PLDV
    0008    8 Signed       4 HFPUSERC       Cumulative PLDV users
    000C   12 Signed       4 HFPUSERM       Cumulative master-only PLDV users
              00000010       HFP$END        * End of HFPBK
              00000002       HFPSIZE        (HFP$END-HFPBK+7)/8 HFPBK size in
                                            doublewords

#### HFPBK Storage Layout

    *** HFPBK - Monitor Processor Domain Hi-Freq Sample Data Area
    *
    *     +---------------------------+---------------------------+
    *   0 |         HFPCOUNT          |         HFPUSERZ          |
    *     +---------------------------+---------------------------+
    *   8 |         HFPUSERC          |         HFPUSERM          |
    *     +---------------------------+---------------------------+
    *  10
    *
    *** HFPBK - Monitor Processor Domain Hi-Freq Sample Data Area

#### HFPBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    HFP$END        000C 00000010
    HFPCOUNT       0000
    HFPSIZE        000C 00000002
    HFPUSERC       0008
    HFPUSERM       000C
    HFPUSERZ       0004

This information is based on z/VM V6R1.0. Last updated on 18 Feb 2010 at 08:43:16 EDT.
Copyright IBM Corporation, 1990, 2008