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 - SYTCUG FUNCTION - Map a Monitor record. LOCATED BY - Through the Monitor Control Area REFERENCED CONTROL BLOCKS - MRRECHDR Monitor Record Header NAME - MRSYTCUG DESCRIPTIVE NAME - Monitor Sample Record Domain 0 - System Domain Record 15 - Logical CPU Utilization Data (Global) DESCRIPTION - Global description of logical CPU utilization in a LPAR environment. This record contains only data of global nature and exists only when the system is running under control of the PR/SM feature. For descriptions of individual logical partitions and their logical CPUs, see the MRSYTCUP (Domain 0, Record 16) record. NOTE: Data in the STSI fields is produced when the necessary architecture is present for the STSI instruction. When this is not present the field values will be 0's.
MRSYTCUG Control Block ContentsOffsets Dec Hex Type Len Name (Dim) Description 0 0 Structure 56 SYTCUG Start of monitor record 0 0 Character 0 SYTCUG_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 Unsigned 1 SYTCUG_LCUTNPAR Number of defined logical partitions. Each logical partition is described in a separate record, MRSYTCUP (Domain 0, Record 16). 21 15 Bitstring 1 SYTCUG_LCUTFLAG Flag byte 1... .... SYTCUG_LCUTPHYS LPAR management time facility is available on this system. Physical CPU utilization data is provided in MRSYTCUM (Domain 0, Record 17) .1.. .... SYTCUG_LCUT204A Indicates enhanced LPAR monitor support available. The enhanced LPAR monitor support allows for reporting of large number of logical processors and for the CPU type reported in the SYTCUP_LCPTYPE field of the MRSYTCUP record (D0/R16). ..1. .... SYTCUG_LCUT204S Indicates the storage page(s) required to obtain the enhanced LPAR statistics was unavailable for this interval. The number of pages required is based on the number of LPARs and Logical processors on the system. These pages must be contiguous. This indicates that data may not be reported for all logical CPUs. ...1 .... SYTCUG_LCUT204E Indicates enhanced LPAR monitor support available as described for SYTCUG_LCUT204S with the addition of support for secondary processors such as zIIPs, zAAPS, IFLs, and ICFs. .... 1... * .... .1.. * .... ..1. * .... ...1 * 22 16 Character 2 * Reserved for IBM use 24 18 Unsigned 2 SYTCUG_LCUTSLCE Global time slice, in milliseconds, if defined by operator. Otherwise, zero. 26 1A Unsigned 2 SYTCUG_LCUTPCCT Number of CPUs in the physical system, or in the physical partition if the system is running in physically partitioned mode. Includes secondary processors if SYTCUG_LCUT204E is on ***********************
STSI 2.2.2 fields
Offsets Dec Hex Type Len Name (Dim) Description 28 1C Unsigned 2 SYTCUG_LPNUMBER LPAR Number of the level-2 configuration. This number is unique to this configuration from all other level-2 configurations provided by the same LPAR hypervisor. 30 1E Character 1 * Reserved and available for IBM use. 31 1F Bitstring 1 SYTCUG_CPUCHAR Describes the characteristics of the logical CPUs that are provided for the level-2 configuration. 32 20 Unsigned 2 SYTCUG_CPUCOUNT Specifies the total number of logical CPUs that are provided for this level-2 configuration. This number includes all of the logical CPUs that are in the configured state, the standby state, or the reserved state. Count does not include any secondary processors 34 22 Unsigned 2 SYTCUG_CPUCFGCT Specifies the number of logical CPUs for this level-2 configuration that are in the configured state. Count does not include any secondary processors 36 24 Unsigned 2 SYTCUG_CPUSTNBY Specifies the number of logical CPU's for this level-2 configuration that are in the standby state. A logical CPU is in the standby state when it is in the level-2 configuration, is not available to be used to execute programs, and can be made available by issuing instructions to place it in the configured state. Count does not include any secondary processors 38 26 Unsigned 2 SYTCUG_CPURESVD Specifies the number of logical CPU's for this level-2 configuration that are in the reserved state. A logical CPU is in the reserved state when it is in the level-2 configuration, is not available to be used to execute programs, and cannot be made available by issuing instructions to place it in the configured state. Count does not include any secondary processors 40 28 Character 8 SYTCUG_LPARNAME Specified the name of this level-2 configuration. 48 30 Unsigned 4 SYTCUG_LPARCAF The LPAR Capabiltiy Adjustment Factor specifies the amount of the underlying level-1 configuration capability that is allowed to be used for this level-2 configuration by the LPAR hypervisor. The maximum value is 1000, and the fraction of level-1 configuration capability is determined by dividing the CAF value by 1000. 52 34 Unsigned 2 SYTCUG_CPUDEDCT Specifies the number of configured state logical CPUs for this level-2 configuration that are provided using dedicated level-1 CPUs 54 36 Unsigned 2 SYTCUG_CPUSHARD Specifies the number of configured state logical CPUs for this level-2 configuration that are provided using shared level-1 CPUs. 56 38 Character 0 SYTCUG_END
MRSYTCUG 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 SYTCUG 0 56 SYTCUG_CPUCFGCT 22 2 SYTCUG_CPUCHAR 1F 1 SYTCUG_CPUCOUNT 20 2 SYTCUG_CPUDEDCT 34 2 SYTCUG_CPURESVD 26 2 SYTCUG_CPUSHARD 36 2 SYTCUG_CPUSTNBY 24 2 SYTCUG_END 38 0 SYTCUG_LCUTFLAG 15 1 SYTCUG_LCUTNPAR 14 1 SYTCUG_LCUTPCCT 1A 2 SYTCUG_LCUTPHYS 15 80 SYTCUG_LCUTSLCE 18 2 SYTCUG_LCUT204A 15 40 SYTCUG_LCUT204E 15 10 SYTCUG_LCUT204S 15 20 SYTCUG_LPARCAF 30 4 SYTCUG_LPARNAME 28 8 SYTCUG_LPNUMBER 1C 2 SYTCUG_MRHDR 0 0
This information is based on z/VM V6R1.0.
Last updated on 8 Oct 2009 at 21:08:13.
Copyright IBM Corporation, 1990, 2009