WLM support for V2R1

New WLM functions in z/OS® V2R1:

SYSEVENT Macro

The SYSEVNT macro is expanded, and supports QRYCONT that can return contention information for one address space or one enclave that consists of:

• The contention request type that was issued by the resource manager.
• The resource manager passed identification (subsystem type and subsystem name).
• The number of identical contention requests.
• A time stamp.
  Note: If there are multiple requests, the oldest time stamp is returned.

Up to five entries are written into the output array which differs in request type and resource manager passed identification.

WLM/SRM Support for Multi-Threading (MT-2)

WLM/SRM provides support for simultaneous multi-threading (MT) support for IBM z13™ with other components, namely supervisor, and z/OS RMF.

SRM Support for 4 TB

Fixes real storage-related problems in SRM and WLM algorithms. It removes no longer needed code in the SRM storage algorithms when there is time for such a cleanup. The code removal reduces the module size and the path length. A shorter path length in SRM also reduces the SRM lock contention, which increases the overall system throughput.