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
Storage Layout
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  260  STOBPG
      0   0  Character    0  STOBPG_MRHDR        record header
      0   0  Character   20  MRHDR
      0   0  Unsigned     2  MRHDRLEN            record length in bytes
      2   2  Unsigned     2  MRHDRZER            field of zeros
      4   4  Unsigned     1  MRHDRDM             domain identifier
      5   5  Unsigned     1  *
      6   6  Unsigned     2  MRHDRRC             record identifier
      8   8  Character    8  MRHDRTOD            Time at which this record was
                                                 built. In time-of-day (TOD) clock
                                                 format. See IBM System 370 XA
                                                 Principle of Operation for
                                                 explanation of format.
     16  10  Character    4  *
     20  14  Character    0  MRHDR_END           End of header
     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    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    260
    STOBPG_END            104      0
    STOBPG_MRHDR            0      0
    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 V4R3.0.

    Last updated on 1 May 2002 at 16:20:33.

    Copyright IBM Corporation, 1990, 2002