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

#### MRSYTSXG

Prolog
Control Block Contents
Cross Reference

#### MRSYTSXG Prolog

     DSECT NAME - SYTSXG
     FUNCTION - Map a Monitor record.
     LOCATED BY -
            Through the Monitor Control Area
     REFERENCED CONTROL BLOCKS -
            MRRECHDR    Monitor Record Header
     NAME - MRSYTSXG
     DESCRIPTIVE NAME - Monitor Sample Record
                        Domain 0  - System Domain
                        Record 21 - System Execution Space (Global)
     DESCRIPTION - Utilization of System Execution Space storage on a
                   global basis.

#### MRSYTSXG Control Block Contents

    Offsets
    Dec  Hex  Type        Len  Name (Dim)             Description

       0   0  Structure    96  SYTSXG                 Start of monitor record
       0   0  Character     0  SYTSXG_MRHDR           Record header. See MRRECHDR
                                                      for details.
       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  Unsigned      4  SYTSXG_SXSSIZE         System Execution Space size
                                                      in pages.
      24  18  Unsigned      4  SYTSXG_RSASXAVL        Count of available System
                                                      Execution Space pages.
      28  1C  Unsigned      4  SYTSXG_RSASXBKA        Count of System Execution
                                                      Space pages backed above 2G.
      32  20  Unsigned      4  SYTSXG_RSASXBKB        Count of System Execution
                                                      Space pages backed below 2G.
      36  24  Unsigned      4  SYTSXG_RSASXUSD        Count of System Execution
                                                      Space pages in use as CP
                                                      pages or aliases including
                                                      no-owned aliases and System
                                                      Execution Space pages
                                                      assigned to tasks deferred on
                                                      frames in the real storage
                                                      manager.
      40  28  Unsigned      4  SYTSXG_RSASXUCP        Count of System Execution
                                                      Space pages in use as CP
                                                      pages. This includes free
                                                      storage, HCPGETST PAGES=, and
                                                      pages permanently allocated
                                                      at initialization.
      44  2C  Unsigned      4  SYTSXG_RSASXUID        Count of all ID-mapped
                                                      System Execution Space pages
                                                      (host logical = host real),
                                                      primarily CP nucleus and
                                                      Prefix pages.
      48  30  Unsigned      4  SYTSXG_RSASXUFS        Count of System Execution
                                                      Space pages with backing
                                                      frames below 2G.
      52  34  Unsigned      4  SYTSXG_RSASXUFG        Count of System Execution
                                                      Space pages with backing
                                                      frames above 2G.
      56  38  Unsigned      4  SYTSXG_RSASXALI        Count of System Execution
                                                      alias pages associated with
                                                      "pageable FRMTEs" and may be
                                                      stealable if not last
                                                      translated or locked. Also
                                                      includes count of no-owned
                                                      SXSTEs.
      60  3C  Unsigned      4  SYTSXG_RSASXNOP        Count of no-owned System
                                                      Execution Space alias pages.
      64  40  Unsigned      4  SYTSXG_RSASXCLA        Count of locked System
                                                      Execution Space alias pages.
      68  44  Unsigned      4  SYTSXG_RSASXQCT        Number of pages on the
                                                      System Execution Space
                                                      unbacked available queue.
      72  48  Unsigned      4  SYTSXG_RSASXACT        Number of pages on the
                                                      System Execution Space
                                                      backed-above-2G available
                                                      queue.
      76  4C  Unsigned      4  SYTSXG_RSASXBCT        Number of pages on the
                                                      System Execution Space
                                                      backed-below-2G available
                                                      queue.
      80  50  Unsigned      4  SYTSXG_RSARSVSY        Count of total reserved
                                                      pages.
      84  54  Unsigned      4  SYTSXG_RSASXSLW        SXS low water mark
      88  58  Character     8  SYTSXG_RSASXSLT        SXS low water time
      96  60  Character     0  SYTSXG_END

#### MRSYTSXG 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
    SYTSXG                     0     96
    SYTSXG_END                60      0
    SYTSXG_MRHDR               0      0
    SYTSXG_RSARSVSY           50      4
    SYTSXG_RSASXACT           48      4
    SYTSXG_RSASXALI           38      4
    SYTSXG_RSASXAVL           18      4
    SYTSXG_RSASXBCT           4C      4
    SYTSXG_RSASXBKA           1C      4
    SYTSXG_RSASXBKB           20      4
    SYTSXG_RSASXCLA           40      4
    SYTSXG_RSASXNOP           3C      4
    SYTSXG_RSASXQCT           44      4
    SYTSXG_RSASXSLT           58      8
    SYTSXG_RSASXSLW           54      4
    SYTSXG_RSASXUCP           28      4
    SYTSXG_RSASXUFG           34      4
    SYTSXG_RSASXUFS           30      4
    SYTSXG_RSASXUID           2C      4
    SYTSXG_RSASXUSD           24      4
    SYTSXG_SXSSIZE            14      4

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

    Last updated on 08 August 2020 at 15:32:38.

    Copyright IBM Corporation, 1990, 2020