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  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 V6R1.0.
Last updated on 8 Oct 2009 at 21:08:13.
Copyright IBM Corporation, 1990, 2009