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               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  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 V5R2.0.
Last updated on 11 Dec 2005 at 18:48:12.
Copyright IBM Corporation, 1990, 2005