MRSTOBPG

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 V6R3.0.

Last updated on 22 Jul 2013 at 15:07:38.

Copyright IBM Corporation, 1990, 2013