IEAVEH070I HiperDispatch is state and in the expected state
Explanation
Check SUP_HIPERDISPATCH determined the check's expected HiperDispatch state matches the actual HiperDispatch state of the system. This system supports enabling HiperDispatch to increase system performance.
With HiperDispatch enabled, the system cache is utilized more efficiently and the system performance is improved in many configurations. The performance gain HiperDispatch provides typically increases with a newer hardware generation and can improve with newer releases of z/OS®.
With HiperDispatch disabled, the system cache is utilized less efficiently and does not receive the performance benefits provided by HiperDispatch.
On any z/OS release running on IBM® System z10® hardware, HiperDispatch disabled is the default. On IBM System z10, customers are encouraged to try running with HiperDispatch enabled.
Beginning with z/OS V1R13 on zEnterprise® 196 hardware, HiperDispatch enabled is the default. With zEnterprise 196 hardware, z/OS partitions with share greater than two physical processors will typically experience improved processor efficiency with HiperDispatch enabled.
IBM recommends that all partitions that see improved or equivalent processor efficiency with HiperDispatch enabled run with HiperDispatch enabled.
- state
- HiperDispatch's current state (enabled or disabled)
System action
The system continues to run in its current HiperDispatch state.
Operator response
N/A
System programmer response
Prior to enabling HiperDispatch for the first time, review the "Planning Considerations for HiperDispatch Mode" White Paper located on IBM Techdocs at http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP101229.
If HiperDispatch is enabled, none.
If HiperDispatch is disabled, consider migrating the partition to HiperDispatch enabled in the future.
Problem determination
N/A
Source
Supervisor Control
Module
IEAVEHCK,IEAVEHMS
Routing code
N/A
Descriptor code
N/A
Automation
N/A
Reference Documentation
"IEAOPTxx (OPT) Parameters" in z/OS MVS Initialization and Tuning Reference .
"SET Command" in z/OS MVS System Commands.
"Planning Considerations for HiperDispatch Mode" White Paper located on IBM Techdocs at http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP101229