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Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRMTRSCH
PrologControl Block Contents
Storage Layout
Cross Reference
MRMTRSCH Prolog
DSECT NAME - MTRSCH
FUNCTION - Map a Monitor record.
LOCATED BY -
Through the Monitor Control Area
REFERENCED CONTROL BLOCKS -
MRRECHDR Monitor Record Header
NAME - MRMTRSCH
DESCRIPTIVE NAME - Monitor Sample Configuration Record
Domain 1 - Monitor Domain
Record 16 - Scheduler Settings
DESCRIPTION - Provides current settings of scheduler tuning
commands such as SET SRM DSPLICE.
MRMTRSCH Control Block Contents
Offsets
Dec Hex Type Len Name (Dim) Description
0 0 Structure 92 MTRSCH Start of monitor record
0 0 Character 0 MTRSCH_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 MTRSCH_SRMBIASI Interactive bias intensity. Set
or defaulted by the SET SRM IAB
command.
24 18 Character 8 MTRSCH_SRMTSLIC Minor time slice size. Set or
defaulted by the SET SRM DSPSLICE
command.
32 20 Character 8 MTRSCH_SRMTSHOT The minor time slice used for
'hotshot' users.
40 28 Unsigned 2 MTRSCH_SRMBIASD Interactive bias duration. Set
or defaulted by the SET SRM IAB
command.
42 2A Unsigned 2 MTRSCH_SRMLDGUS Number of page reads a user must
do in a minor time slice to be
classified as a 'loading user'.
44 2C Unsigned 4 MTRSCH_SRMP1LDG Percentage of 'Load Capacity'
which can be taken by Q1, Q2, and
Q3 users. Set or defaulted by the
SET SRM LDUBUF command.
48 30 Unsigned 4 MTRSCH_SRMP2LDG Percentage of 'Load Capacity'
which can be taken by Q2, and Q3
users. Set or defaulted by the SET
SRM LDUBUF command.
52 34 Unsigned 4 MTRSCH_SRMP3LDG Percentage of 'Load Capacity'
which can be taken by Q3 user. Set
or defaulted by the SET SRM LDUBUF
command.
56 38 Unsigned 4 MTRSCH_SRMLDGCP Loading user capacity of the
system
60 3C Unsigned 4 MTRSCH_SRMP1WSS Percentage of available memory
which is assignable to E1, E2 and
E3 users. Set or defaulted by the
SET SRM STORBUF command.
64 40 Unsigned 4 MTRSCH_SRMP2WSS Percentage of available memory
which is assignable to E2 and E3
users. Set or defaulted by the SET
SRM STORBUF command.
68 44 Unsigned 4 MTRSCH_SRMP3WSS Percentage of available memory
which is assignable to E3 users.
Set or defaulted by the SET SRM
STORBUF command.
72 48 Unsigned 4 MTRSCH_SRMWSSMP Maximum MAXWSS percentage. Set
or defaulted by the SET SRM MAXWSS
command.
76 4C Unsigned 4 MTRSCH_SRML1DSP Number of openings in the
dispatch list made available to
users in the short-running (E1)
transactions. Set or defaulted by
the SET SRM DSPBUF command.
80 50 Unsigned 4 MTRSCH_SRML2DSP Number of openings in the
dispatch list made available to
users in the medium-running (E2)
transactions. This value is a
subset of MTRSCH_SRML1DSP. Set or
defaulted by the SET SRM DSPBUF
command.
84 54 Unsigned 4 MTRSCH_SRML3DSP Number of openings in the
dispatch list made available to
users in the long-running (E3)
transactions. This value is a
subset of MTRSCH_SRML1DSP. Set or
defaulted by the SET SRM DSPBUF
command.
88 58 Unsigned 4 MTRSCH_SRMXPCTG Percentage of XSTORE to use in
WSS and available memory
calculations. Defaulted or set by
the SET SRM XSTORE command. Units
of value is a hexadecimal factor
scaled 8 bits. Examples-
X'00000200'=2.00(200%),
X'00000100'=1.00(100%),
X'000000C0'=0.75(75%), etc.
92 5C Character 0 MTRSCH_END
MRMTRSCH 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
MTRSCH 0 92
MTRSCH_END 5C 0
MTRSCH_MRHDR 0 0
MTRSCH_SRMBIASD 28 2
MTRSCH_SRMBIASI 14 4
MTRSCH_SRMLDGCP 38 4
MTRSCH_SRMLDGUS 2A 2
MTRSCH_SRML1DSP 4C 4
MTRSCH_SRML2DSP 50 4
MTRSCH_SRML3DSP 54 4
MTRSCH_SRMP1LDG 2C 4
MTRSCH_SRMP1WSS 3C 4
MTRSCH_SRMP2LDG 30 4
MTRSCH_SRMP2WSS 40 4
MTRSCH_SRMP3LDG 34 4
MTRSCH_SRMP3WSS 44 4
MTRSCH_SRMTSHOT 20 8
MTRSCH_SRMTSLIC 18 8
MTRSCH_SRMWSSMP 48 4
MTRSCH_SRMXPCTG 58 4
This information is
based on z/VM V4R3.0.
Last updated on 1 May 2002 at 16:20:33.
Copyright IBM Corporation, 1990, 2002