Programming Interface Information: The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM.

#### MRSTOBPG

Prolog
Control Block Contents
Cross Reference

#### MRSTOBPG Prolog

     DSECT NAME - STOBPG
     FUNCTION - Map a Monitor record.
     LOCATED BY -
            Through the Monitor Control Area
     REFERENCED CONTROL BLOCKS -
            MRRECHDR    Monitor Record Header
     NAME - MRSTOBPG
     DESCRIPTIVE NAME - Monitor Sample Record
                        Domain 3 - Storage Domain
                        Record 8 - Block Paging Data
     DESCRIPTION - Block paging activity.

#### MRSTOBPG Control Block Contents

    Offsets
    Dec  Hex  Type        Len  Name (Dim)             Description

       0   0  Structure   292  STOBPG
       0   0  Character     0  STOBPG_MRHDR           record header
       0   0  Character    20  MRHDR
       0   0  Unsigned      2  MRHDRLEN
       2   2  Unsigned      2  MRHDRZER
       4   4  Unsigned      1  MRHDRDM
       5   5  Unsigned      1  *
       6   6  Unsigned      2  MRHDRRC
       8   8  Character     8  MRHDRTOD
      16  10  Character     4  *
      20  14  Character     0  MRHDR_END
      20  14  Character    80  STOBPG_PGDBR_TBL
      20  14  Unsigned      4  STOBPG_PGDBR(1:20)     Number of times a block of
                                                      the corresponding size was
                                                      read. Each index number from
                                                      1 to 19 corresponds to the
                                                      block size number. Example:
                                                      PGDBR(8) = the number of
                                                      times a block of 8 pages was
                                                      read. For index number 20,
                                                      this is the number of times a
                                                      block of 20 or more pages was
                                                      read.
     100  64  Character    80  STOBPG_PGDBM_TBL
     100  64  Unsigned      4  STOBPG_PGDBM(1:20)     Number of times a block of
                                                      the corresponding size was
                                                      migrated. Each index number
                                                      from 1 to 19 corresponds to
                                                      the block size by a factor of
                                                      2. Example: PGDBM(1) = the
                                                      number of times a block of 1
                                                      or 2 pages was migrated.
                                                      PGDBM(6) = the number of
                                                      times a block of 11 or 12
                                                      pages was migrated. For index
                                                      number 20, this is the number
                                                      of times a block of 39 or
                                                      more pages was migrated.
     180  B4  Character    80  STOBPG_PGDBS_TBL
     180  B4  Unsigned      4  STOBPG_PGDBS(1:20)     Number of times a block of
                                                      the corresponding size was
                                                      written. Each index number
                                                      from 1 to 19 corresponds to
                                                      the block size by a factor of
                                                      2. Example: PGDBS(1) = the
                                                      number of times a a block of
                                                      1 or 2 pages was written.
                                                      PGDBS(6) = the number of
                                                      times a block of 11 or 12
                                                      pages was written. For index
                                                      number 20, this is the number
                                                      of times a block of 39 or
                                                      more pages was written.
     260 104  Character     8  STOBPG_PGD_READREQUEST Total number of Block Page
                                                      Read requests
     268 10C  Character     8  STOBPG_PGD_READPAGES   Total number of pages read
                                                      for Block Page Reads requests
     276 114  Character     8  STOBPG_PGD_WRITEREQUESTTotal number of Block Page
                                                      Write requests
     284 11C  Character     8  STOBPG_PGD_WRITEPAGES  Total number of pages
                                                      written via Block Page Writes
     292 124  Character     0  STOBPG_END

#### MRSTOBPG Cross Reference

                          Hex           Hex
    Name                  Offset Length Value

    MRHDR                      0     20
    MRHDR_END                 14      0
    MRHDRDM                    4      1
    MRHDRLEN                   0      2
    MRHDRRC                    6      2
    MRHDRTOD                   8      8
    MRHDRZER                   2      2
    STOBPG                     0    292
    STOBPG_END               124      0
    STOBPG_MRHDR               0      0
    STOBPG_PGD_READPAGES     10C      8
    STOBPG_PGD_READREQUEST   104      8
    STOBPG_PGD_WRITEPAGES    11C      8
    STOBPG_PGD_WRITEREQUES   114      8
    STOBPG_PGDBM              64     80
    STOBPG_PGDBM_TBL          64     80
    STOBPG_PGDBR              14     80
    STOBPG_PGDBR_TBL          14     80
    STOBPG_PGDBS              B4     80
    STOBPG_PGDBS_TBL          B4     80

    This information is
    based on z/VM V7R2.0.

    Last updated on 08 August 2020 at 21:32:09.

    Copyright IBM Corporation, 1990, 2020