Use the Address Space IA Impact attributes to determine how various workloads within your system may be interfering with each other. Impact analysis assists you in arriving at quick and accurate solutions to problems caused by workload contention.
ASID Address space ID in hexadecimal. The address space ID is a unique number assigned to an address space when it is created. It is used by z/OS as an index to find the main control block of the address space or to differentiate between address spaces.
CPU Percent The percentage of the total delay to the favored workload that this Impactor contributed during the collection period that resulted from CPU contention. Valid value is a 2-byte integer in the range 0.0 - 100.0.
Enqueue Percent The percentage of the total delay to the favored workload that this Impactor contributed during the collection period that resulted from waiting for an enqueue. Valid value is a 2-byte integer in the range 0.0 - 100.0.
Favored ASID The hexadecimal address space ID of the favored address space.
Favored Job Name The job name of the favored address space. Valid value is a string, with a maximum of 8 characters.
Favored Type The type of the favored address space. The value in this column should be AS, identifying this as an address space. Valid value is a string, with a maximum of 2 characters.
IFA Percent The amount that this impactor contributed towards the delay of the favored address space due to IFA contention during the collection period. Valid range is 0.0 - 100.0.
IFC Percent The amount that this Impactor contributed towards the delay of the favored address space due to IFA on CP contention during the collection period. Valid value is a 4-byte integer in the range is 0.0 - 100.0.
Impact Percent The percentage of the total delay, for any reason, to the favored workload that this Impactor contributed during the collection period. Valid value is a 4-byte integer in the range from 0.0 to 100.0.
Impactor IFA Count The number of samples that this impactor has delayed the favored address space during the collection period for which the delay was due to IFA contention. Valid value is a 4-byte integer in the range 0-2147483647.
Impactor IFC Count The number of samples that this impactor has delayed the favored address space during the collection period for which the delay was due to IFA on CP contention. Valid value is a 4-byte integer in the range 0-2147483647.
Impactor zIIP Count The number of samples this Impactor has delayed the favored address space during the collection period for which the delay was due to contention for System z9 Integrated Information Processor resources.
I/O Percent The percentage of the total delay to the favored address space that this Impactor contributed during the collection period that resulted from I/O contention. Valid value is a 4-byte integer in the range from 0.0 to 100.0.
Job Name The job name of the impactor that is delaying the favored workload. Valid value is an 8-byte character string.
Job Number The JES job ID of the Impactor. Valid value is an 8-byte character string.
Managed System A z/OS operating system in your enterprise that a Tivoli OMEGAMON XE for z/OS agent is monitoring. Valid value is a character string with a maximum length of 32 bytes in the format <plexname>:<smfid>:MVSSYS.
Performance Index Performance index defined for the impactor's service class. Valid value is a 2-byte integer.
Service Class Name of the service class in which the Impactor is running. Valid value is an 8-byte character string.
Total IFA Count The total number of samples that have been taken for the favored address space during the collection period for which the delay was due to IFA contention. Valid value is a 4-byte integer
Total IFC Count Total number of samples that have been taken for the favored address space during the collection period for which the delay was due to IFA on CP contention. Valid value is a 4-byte integer in the range 0-2147483647.
Total zIIP Count Total number of samples taken for the favored address space during the collection period for which the delay was due to contention for System z9 Integrated Information Processor resources.
zIIP Percent The amount that this impactor contributed towards the delay of the favored address space due to contention for System z9 Integrated Information Processor resources during the collection period.
zIIP on CP Percent The amount that this impactor contributed towards the delay of the favored address space due to System z9 Integrated Information Processor (zIIP) on CP contention during the collection period. The value can exceed 100%. The maximum value is n00% where n is the number of processors (CPUs) assigned to the LPAR or image.