About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRPRCIOP
PrologControl Block Contents
Cross Reference
MRPRCIOP Prolog
DSECT NAME - PRCIOP FUNCTION - Map a Monitor record. LOCATED BY - Through the Monitor Control Area REFERENCED CONTROL BLOCKS - MRRECHDR Monitor Record Header NAME - MRPRCIOP DESCRIPTIVE NAME - Monitor Sample Record Domain 5 - Processor Domain Record 8 - I/O Processor (IOP) Utilization Data DESCRIPTION - Provides measurement data taken from the the systems' real I/O processors. A record is generated for each operational IOP, containing various types of processor utilization and measurement data. NOTES: - Each PRCIOP record generated contains sample utilzation data for ONE operational I/O processor in the system. - This record is generated for an operational IOP only if the I/O processor measurement data is available to the monitor subsystem (e.g. if MTRSYS_SYSSTIOP is set in MRMTRSYS) - If VM is running native, this record will be generated when the command is available. - If VM is running in an LPAR, the processor may be shared, resulting in cumulative data among those active and inactive LPARs on the system. - If VM is running second-level, the command will not be available and, thus, the record will not be generated.
MRPRCIOP Control Block Contents
Offsets Dec Hex Type Len Name (Dim) Description 0 0 Structure 96 PRCIOP Start of monitor record 0 0 Character 0 PRCIOP_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 Bitstring 1 PRCIOP_CSCIOPID Unique I/O processor number 21 15 Character 8 PRCIOP_CSCIOPVB 21 15 Unsigned 1 PRCIOP_CSCVBLBC Unsigned integer depicting the IOPs' model-dependent number of valid bytes allocated starting in the right-most portion of the measurement data for the IOP-BUSY counter type. 22 16 Unsigned 1 PRCIOP_CSCVBLIC Unsigned integer depicting the IOPs' model-dependent number of valid bytes allocated starting in the right-most portion of the measurement data for the IOP-IDLE counter type. 23 17 Unsigned 1 PRCIOP_CSCVBLSC Unsigned integer depicting the IOPs' model-dependent number of valid bytes allocated starting in the right-most portion of the measurement data for the IOP START-FUNCTION counter type. 24 18 Unsigned 1 PRCIOP_CSCVBLPI Unsigned integer depicting the IOPs' model-dependent number of valid bytes allocated starting in the right-most portion of the measurement data for the IOP PROCESSED I/O INTERRUPTIONS counter type. 25 19 Unsigned 1 PRCIOP_CSCVBLCB Unsigned integer depicting the IOPs' model-dependent number of valid bytes allocated starting in the right-most portion of the measurement data for the IOP CHANNEL-BUSY counter type. 26 1A Unsigned 1 PRCIOP_CSCVBLSB Unsigned integer depicting the IOPs' model-dependent number of valid bytes allocated starting in the right-most portion of the measurement data for the IOP SWITCH-BUSY counter type. 27 1B Unsigned 1 PRCIOP_CSCVBLUB Unsigned integer depicting the IOPs' model-dependent number of valid bytes allocated starting in the right-most portion of the measurement data for the IOP CONTROL-UNIT-BUSY counter type. 28 1C Unsigned 1 PRCIOP_CSCVBLDB Unsigned integer depicting the IOPs' model-dependent number of valid bytes allocated starting in the right-most portion of the measurement data for the IOP DEVICE-BUSY counter type. 29 1D Character 3 * Reserved and available for future IBM use. 32 20 Character 64 PRCIOP_CSCIOPMD 32 20 Character 8 PRCIOP_CSCMDBC Number of times the I/O processor was BUSY when sampled at, model- dependent, regular intervals by the hardware. The counter is incremented by one when the I/O processor is busy with the channel-subsystem tasks at a sample point. The value is right- justified with zero padding. 40 28 Character 8 PRCIOP_CSCMDIC Number of times the I/O processor was IDLE when sampled at, model- dependent, regular intervals by the hardware. The counter is incremented by one when the I/O processor is not performing any channel-subsystem tasks at a sample point. The value is right- justified with zero padding. 48 30 Character 8 PRCIOP_CSCMDSC Number of times the I/O processor BEGAN a START SUBCHANNEL. The was sampled at, model-dependent, regular intervals by the H/W. The value is right-justified with zero padding. 56 38 Character 8 PRCIOP_CSCMDPI Number of times the I/O processor generated an I/O INTERRUPTION. This was sampled at, model- dependent regular intervals by the hardware. The value is right- justified with zero padding. 64 40 Character 8 PRCIOP_CSCMDCB Number of times the I/O processor indicated a CHANNEL-BUSY when sampled at, model-dependent, regular intervals by the H/W. The counter is incremented by one each time a busy channel is encountered when attempting to start an I/O operation to a device. The value is right- justified with zero padding. 72 48 Character 8 PRCIOP_CSCMDSB Number of times the I/O processor indicated a SWITCH-BUSY when sampled at, model-dependent, regular intervals by the H/W. The counter is incremented by one each time a busy switch is encountered when attempting to start an I/O operation to a device. The value is right- justified with zero padding. 80 50 Character 8 PRCIOP_CSCMDUB Number of times the I/O processor indicated a CONTROL-UNIT-BUSY when sampled at, model-dependent, regular intervals by the H/W. The counter is incremented by one each time a busy control-unit is encountered when attempting to start an I/O operation to a device. The value is right- justified with zero padding. 88 58 Character 8 PRCIOP_CSCMDDB Number of times the I/O processor indicated a DEVICE-BUSY when sampled at, model-dependent, regular intervals by the H/W. The counter is incremented by one each time a busy device is found when attempting to start an I/O operation to the device The value is right-justified with zero padding. 96 60 Character 0 PRCIOP_END End of record
MRPRCIOP 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 PRCIOP 0 96 PRCIOP_CSCIOPID 14 1 PRCIOP_CSCIOPMD 20 64 PRCIOP_CSCIOPVB 15 8 PRCIOP_CSCMDBC 20 8 PRCIOP_CSCMDCB 40 8 PRCIOP_CSCMDDB 58 8 PRCIOP_CSCMDIC 28 8 PRCIOP_CSCMDPI 38 8 PRCIOP_CSCMDSB 48 8 PRCIOP_CSCMDSC 30 8 PRCIOP_CSCMDUB 50 8 PRCIOP_CSCVBLBC 15 1 PRCIOP_CSCVBLCB 19 1 PRCIOP_CSCVBLDB 1C 1 PRCIOP_CSCVBLIC 16 1 PRCIOP_CSCVBLPI 18 1 PRCIOP_CSCVBLSB 1A 1 PRCIOP_CSCVBLSC 17 1 PRCIOP_CSCVBLUB 1B 1 PRCIOP_END 60 0 PRCIOP_MRHDR 0 0
This information is based on z/VM V5R2.0.
Last updated on 11 Dec 2005 at 18:48:12.
Copyright IBM Corporation, 1990, 2005