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

MRSYTSYG

Prolog
Control Block Contents
Storage Layout
Cross Reference

MRSYTSYG Prolog

 DSECT NAME - SYTSYG
 FUNCTION - Map a Monitor record.
 LOCATED BY -
      Through the Monitor Control Area
 REFERENCED CONTROL BLOCKS -
      MRRECHDR    Monitor Record Header
 NAME - MRSYTSYG
 DESCRIPTIVE NAME -  Monitor Sample Record
                   Domain 0 - System Domain
                   Record 19- System Data (Global)
 DESCRIPTION - System wide utilization data.


MRSYTSYG Control Block Contents

Offsets
Dec Hex  Type       Len  Name (Dim)         Description
 
  0   0  Structure   56  SYTSYG              Start of monitor record
  0   0  Character    0  SYTSYG_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  Character    8  SYTSYG_XCTMSACT     Accumulated elapsed time in
                                             microseconds that routines that
                                             comprise user exits were active
 28  1C  Unsigned     4  SYTSYG_FTRDONE      Number of times fast CCW
                                             translation processing completed
                                             successfully for a DASD device.
 32  20  Unsigned     4  SYTSYG_FTRABORT     Number of times fast CCW
                                             translation processing was aborted
                                             for a DASD device.
 36  24  Unsigned     4  SYTSYG_FTRNOTEL     Number of times a presented CCW
                                             for a DASD device was not eligible
                                             for fast CCW translation. There
                                             are cases where ineligibility may
                                             have been determined before the
                                             CCW is presented to the fast path
                                             simulator. Those cases are not
                                             counted here.
 40  28  Unsigned     4  SYTSYG_FTRWRITE     Number of times a write channel
                                             program for a DASD device was
                                             presented for fast CCW
                                             translation.
 44  2C  Unsigned     4  SYTSYG_CTNDONE      Number of times fast CCW
                                             translation processing completed
                                             successfully for a network device.
 48  30  Unsigned     4  SYTSYG_CTNABORT     Number of times fast CCW
                                             translation processing was aborted
                                             for a network device.
 52  34  Unsigned     4  SYTSYG_CTNNOTEL     Number of times a presented CCW
                                             for a network device was not
                                             eligible for fast CCW translation.
                                             There are cases where
                                             ineligibility may have been
                                             determined before the CCW is
                                             presented to the fast path
                                             simulator. Those cases are not
                                             counted here.
 56  38  Character    0  SYTSYG_END          

MRSYTSYG 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
SYTSYG                  0     56
SYTSYG_CTNABORT        30      4
SYTSYG_CTNDONE         2C      4
SYTSYG_CTNNOTEL        34      4
SYTSYG_END             38      0
SYTSYG_FTRABORT        20      4
SYTSYG_FTRDONE         1C      4
SYTSYG_FTRNOTEL        24      4
SYTSYG_FTRWRITE        28      4
SYTSYG_MRHDR            0      0
SYTSYG_XCTMSACT        14      8

This information is based on z/VM V4R2.0.
Last updated on 15 Oct 2001 at 08:04:23.
Copyright IBM Corporation, 1990, 2001