RMPTTOM

RMPTTOM

Specifies the SRM invocation interval. The specified real-time interval is adjusted by relative processor speed to become SRM time in order to ensure consistent SRM control across various processors. The relationship of real time to SRM time for each processor is described in the "Advanced SRM Parameter Concepts" section of z/OS MVS Initialization and Tuning Guide.

Value Range: 1000-999999 msec

Default Value: 1000

IBM have recommended that all sites with zSeries and System z processors rated at a per CP speed greater than 100 MIPS update their RMPTTOM setting to 2000.

Be aware that at some point fixes will occur to the SRM table for the z9 EC, and future enhancements to SRM will necessitate a re-evaluation of RMPTTOM settings above the default level.