Performance
These statements and parameters can affect the performance of IBM Z Workload Scheduler.
| Statement | Parameters | Description |
|---|---|---|
| AUDIT | Specifies how much audit information is produced. | |
| ALERTS | LATEOPER | Use only when deadlines are accurate. |
| AUTHDEF | SUBRESOURCES | Specifies subresources that you want to check. |
| BATCHOPT | SMOOTHSUBDELAY | Based on this setting, the controller adds a random delay in the submission of operations that are neither urgent, nor belonging to a critical path. |
| SMOOTHSUBCONFLEVEL | Calculates the submission delay added by SMOOTHSUBDELAY. Used to prevent that the delay causes an operation submission too close to its latest start time. | |
| EWTROPTS | STEPEVENTS | Specifies when IBM Z Workload Scheduler creates events for ending job-steps. |
| PRINTEVENTS | Specifies if IBM Z Workload Scheduler creates events for print tasks (type 4). | |
| HOLDJOB | Specifies if IBM Z Workload Scheduler holds and releases jobs on the JES queue. | |
| JTOPTS | BACKUP | Specifies if a CP backup is performed automatically and how many records are written to the JT log between backups. |
| EVELIM | Specifies how often statistics messages related to the STATMSG keyword are issued. | |
| MAXJSFILE | Specifies if a JS backup is performed automatically and how large the JCL repository file grows before IBM Z Workload Scheduler performs a backup. | |
| QUEUELEN | Specifies the number of operations IBM Z Workload Scheduler starts when the workstation analyzer subtask gets the CP lock. | |
| SMOOTHSUBMISSION | Activates the Smooth Submission feature, which prioritizes the submission of operations that are urgent (with priority 9) or belong to a critical path. | |
| SMOOTHSUBRATE | Determines the average number of operations to be submitted, in 1 minute, on computer automatic workstations, with the exception of the operations that are urgent (with priority 9). | |
| SUBRATECRITNET | Applies the value set for SMOOTHSUBRATE to the operations belonging to the whole critical network. | |
| STATIM | Specifies when statistics messages are issued. | |
| STATMSG | Determines if IBM Z Workload Scheduler issues performance statistics for the current plan, event manager, general service, and WSA task. | |
| TRACK | Determines which jobs IBM Z Workload Scheduler tracks. | |
| OPCOPTS | RCLEANUP | Specifies if the restart and cleanup function is active. Performance is affected when the user chooses to archive the user sysouts for the majority of the operations. |
| VARSUB | Determines which jobs are scanned for JCL variables and directives. |
The amount of data written to the job-tracking log affects how often IBM Z Workload Scheduler performs a current plan backup. Keep this in mind when specifying a value for the BACKUP keyword of JTOPTS.