Programming Interface Information:
The Monitor Records are intended Programming Interfaces that
allow the customer to write programs to obtain services of z/VM.
Control Block Contents
DSECT NAME - SCLSRM FUNCTION - Map a Monitor record. LOCATED BY - Through the Monitor Control Area REFERENCED CONTROL BLOCKS - MRRECHDR Monitor Record Header NAME - MRSCLSRM DESCRIPTIVE NAME - Monitor Event Record Domain 2 - Scheduler Domain Record 7 - SET SRM Changes DESCRIPTION - Indicates that the SET SRM command has been issued. The record is created regardless of which users are being monitored for the scheduler domain. System-wide fields are set, depending on the nature of the SET SRM command. All potential fields pertaining to that command will be set while others will remain unchanged (they may be zero or contain data set by prior SET SRM commands).
MRSCLSRM Control Block ContentsOffsets Dec Hex Type Len Name (Dim) Description 0 0 Structure 92 SCLSRM Start of monitor record 0 0 Character 0 SCLSRM_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 SCLSRM_SRMBIASI Interactive bias intensity. Set by the SET SRM IAB command. 24 18 Unsigned 2 SCLSRM_SRMBIASD Interactive bias duration. Set by the SET SRM IAB command. 26 1A Character 8 SCLSRM_SRMTSLIC Minor time slice size. Set by the SET SRM DSPSLICE command. 34 22 Character 8 SCLSRM_SRMTSHOT The minor time slice used for 'hotshot' users. 42 2A Unsigned 2 SCLSRM_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 SCLSRM_SRMP1LDG Percentage of 'LOAD CAPACITY' which can be taken by Q1, Q2 and Q3 users. Set by the SET SRM LDUBUF command. 48 30 Unsigned 4 SCLSRM_SRMP2LDG Percentage of 'LOAD CAPACITY' which can be taken by Q2 and Q3 users. Set by SET SRM LDUBUF command. 52 34 Unsigned 4 SCLSRM_SRMP3LDG Percentage of 'LOAD CAPACITY' which can be taken by Q3 users. Set by the SET SRM LDUBUF command. It relates to Q3 users. 56 38 Unsigned 4 SCLSRM_SRMLDGCP Loading user capacity of the system 60 3C Unsigned 4 SCLSRM_SRMP1WSS Percentage of available memory which is assignable to E1, E2 and E3 user. May be set by the SET SRM STORBUF command. 64 40 Unsigned 4 SCLSRM_SRMP2WSS Percentage of available memory which is assignable to E2 and E3 users. May be set by the SET SRM STORBUF command. 68 44 Unsigned 4 SCLSRM_SRMP3WSS Percentage of available memory which is assignable to E3 users. May be set by the SET SRM STORBUF command. 72 48 Unsigned 4 SCLSRM_SRMWSSMP Maximum MAXWSS percentage as specified by the SET SRM MAXWSS command 76 4C Unsigned 4 SCLSRM_SRML1DSP Number of openings in the dispatch list made available to users in the short-running (E1) transactions 80 50 Unsigned 4 SCLSRM_SRML2DSP Number of openings in the dispatch list made available to users in the medium-running (E2) transactions. This value is a subset of SCLSRM_SRML1DSP. 84 54 Unsigned 4 SCLSRM_SRML3DSP Number of openings in the dispatch list made available to users in the long-running (E3) transactions. This value is a subset of SCLSRM_SRML2DSP. 88 58 Unsigned 4 SCLSRM_SRMXPCTG Percentage of XSTORE to use in WSS and available memory calculations. Set or defaulted by the SET SRM XSTORE command. Unit 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 SCLSRM_END
MRSCLSRM Cross ReferenceHex 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 SCLSRM 0 92 SCLSRM_END 5C 0 SCLSRM_MRHDR 0 0 SCLSRM_SRMBIASD 18 2 SCLSRM_SRMBIASI 14 4 SCLSRM_SRMLDGCP 38 4 SCLSRM_SRMLDGUS 2A 2 SCLSRM_SRML1DSP 4C 4 SCLSRM_SRML2DSP 50 4 SCLSRM_SRML3DSP 54 4 SCLSRM_SRMP1LDG 2C 4 SCLSRM_SRMP1WSS 3C 4 SCLSRM_SRMP2LDG 30 4 SCLSRM_SRMP2WSS 40 4 SCLSRM_SRMP3LDG 34 4 SCLSRM_SRMP3WSS 44 4 SCLSRM_SRMTSHOT 22 8 SCLSRM_SRMTSLIC 1A 8 SCLSRM_SRMWSSMP 48 4 SCLSRM_SRMXPCTG 58 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