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

MRSTOSXG

Prolog
Control Block Contents
Cross Reference

MRSTOSXG Prolog

 DSECT NAME - STOSXG
 FUNCTION - Map a Monitor record.
 LOCATED BY -
        Through the Monitor Control Area
 REFERENCED CONTROL BLOCKS -
        MRRECHDR    Monitor Record Header
 NAME - MRSTOSXG
 DESCRIPTIVE NAME - Monitor Sample Record
                    Domain 3  - Storage Domain
                    Record 19 - System Execution Space (Global)
 DESCRIPTION - Utilization of System Execution Space storage on a
               global basis.

MRSTOSXG Control Block Contents

Offsets
Dec  Hex  Type        Len  Name (Dim)             Description
 
   0   0  Structure    88  STOSXG                 Start of monitor record
   0   0  Character     0  STOSXG_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  STOSXG_RSASXUOT        Count of pages of other CP
                                                  type pages: (SYTSXG_RSASXUCP
                                                  - (SYTSXG_RSASXUID +
                                                  SYTSXG_RSASXUFS +
                                                  SYTSXG_RSASXUFG)).
  24  18  Unsigned      4  STOSXG_RSASXCTG        Count of System Execution
                                                  Space pages in use as part of
                                                  a contiguous page request
                                                  from HCPGETST with PAGES>1.
                                                  This count does not include
                                                  the pages that were
                                                  pre-allocated as a part of
                                                  initialization.
  28  1C  Unsigned      4  STOSXG_RSASXCPL        Count of locked System
                                                  Execution Space alias pages
                                                  locked by the CP LOCK
                                                  command.
  32  20  Unsigned      4  STOSXG_RSASXPCT        Number of pages on the
                                                  System Execution Space
                                                  potentially- stealable queue.
  36  24  Unsigned      4  STOSXG_RSASXDCT        Number of System Execution
                                                  Space page requests that are
                                                  currently deferred.
  40  28  Unsigned      4  STOSXG_RSASXDCA        Number of System Execution
                                                  Space create alias requests
                                                  that are currently deferred.
  44  2C  Unsigned      4  STOSXG_RSASXDPA        Number of System Execution
                                                  Space page requests with
                                                  backing=any that are
                                                  currently deferred for a
                                                  page.
  48  30  Unsigned      4  STOSXG_RSASXDPB        Number of System Execution
                                                  Space page requests with
                                                  backing=below 2G that are
                                                  currently deferred for a
                                                  page.
  52  34  Unsigned      4  STOSXG_RSASXDFA        Number of System Execution
                                                  Space page requests that are
                                                  currently deferred for any
                                                  frame.
  56  38  Unsigned      4  STOSXG_RSASXDFB        Number of System Execution
                                                  Space page requests that are
                                                  currently deferred for a
                                                  frame below 2G.
  60  3C  Unsigned      4  STOSXG_RSASXRDA        Count of times an attempt
                                                  was made to redrive tasks
                                                  waiting for an available
                                                  page.
  64  40  Unsigned      4  STOSXG_RSASXRDC        Count of individual task
                                                  redrives for tasks waiting
                                                  for an available page.
  68  44  Unsigned      4  STOSXG_RSASXAMX        Maximum number of pages on
                                                  the backed above 2G queue.
  72  48  Unsigned      4  STOSXG_RSASXBMX        Maximum number of pages on
                                                  the backed below 2G queue.
  76  4C  Unsigned      4  STOSXG_RSASXQMN        Threshold that triggers
                                                  replenishment of the
                                                  available unbacked SXS page
                                                  queue.
  80  50  Unsigned      4  STOSXG_RSASXQRA        Number of aliases that are
                                                  stolen during a single
                                                  replenishment of the
                                                  available unbacked SXS page
                                                  queue.
  84  54  Unsigned      4  STOSXG_RSASXRPM        Smallest number of pages on
                                                  the available, unbacked SXS
                                                  page queue at the completion
                                                  of replenishments.
  88  58  Character     0  STOSXG_END

MRSTOSXG 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
STOSXG                     0     88
STOSXG_END                58      0
STOSXG_MRHDR               0      0
STOSXG_RSASXAMX           44      4
STOSXG_RSASXBMX           48      4
STOSXG_RSASXCPL           1C      4
STOSXG_RSASXCTG           18      4
STOSXG_RSASXDCA           28      4
STOSXG_RSASXDCT           24      4
STOSXG_RSASXDFA           34      4
STOSXG_RSASXDFB           38      4
STOSXG_RSASXDPA           2C      4
STOSXG_RSASXDPB           30      4
STOSXG_RSASXPCT           20      4
STOSXG_RSASXQMN           4C      4
STOSXG_RSASXQRA           50      4
STOSXG_RSASXRDA           3C      4
STOSXG_RSASXRDC           40      4
STOSXG_RSASXRPM           54      4
STOSXG_RSASXUOT           14      4

This information is
based on z/VM V7R4.0.

Last updated on 10 September 2024 at 08:41:05.

Copyright IBM Corporation, 1990, 2024