Highlights
  The components of RMF
  Productivity, growth and investment protection
  What's new in RMF for z/OS® V1.13
  What's new in RMF for z/OS® V1.12
  What's new in RMF for z/OS® V1.11

 

What's new in RMF for z/OS Version 1 Release 13

Monitoring system suspend lock, enqueue, and latch contention

A new Postprocessor Serialization Delay report is available in XML output format to help users to detect serialization-related performance issues by providing system suspend lock, enqueue, and latch contention information.

RMF also stores this information in a new subtype 5 of SMF record 72.

Workload Activity reporting enhancements

The Postprocessor Workload Activity report is extended by the following features:

  • Response time distribution for velocity goals: In addition to service and report class periods with a specified response time goal, new tabular response time distributions are displayed for those periods that have defined execution velocity goals. This helps customers to obtain better analysis data for transactional workload which can be used to change existing execution velocity goals to meaningful response time goals.
  • Supervisor promotion: The report shows the CPU time consumed for work units while they have been promoted by the z/OS supervisor to a higher dispatching priority than assigned by WLM. In addition, RMF provides new overview conditions for the Postprocessor based on SMF record 72-3.

Redesign of the Postprocessor Paging Activity report

The Postprocessor Paging Activity report is redesigned to provide a more current picture of storage distribution.

The former Central Storage Movement Rates section is restructured and renamed to Central Storage Movement and Request Rates.

The Frame and Slot Counts section is re-arranged and enhanced with new fields, and the Expanded Storage Movement Rates values, formerly shown only for systems running in 31-bit addressing mode, are no longer available. Also, the report now presents Memory Objects and Frames in a separate section.

The Swap Placement Activity section is no longer provided. The related overview conditions are not supported when data for z/OS V1R13 or later is processed. The only remaining measurement is the number of logical swaps. Therefore, RMF provides a new overview condition for the Postprocessor based on SMF record 71, providing an accumulated count for all logical swap reasons.

In addition, the Paging Activity report is made available in XML output format.

Enhanced RMF Monitor II OPT Settings report

The RMF Monitor II OPT Settings report displays information about four additional OPT parameters.

z/VM guest support

RMF enhances its CPU reporting capabilities for z/OS systems running as z/VM guests. SMF record type 70 subtype 1 (CPU activity) provides simplified PR/SM partition and logical processor data sections for the guest system. This enables the Partition Data Report section of the CPU Activity report to provide dispatch times and processor utilizations for this guest system. The additional CPU data for z/VM guests is measured as soon as the new gatherer option VMGUEST for Monitor I is active.

Resource monitoring of systems running Linux or AIX

RMF provides new CIM-based performance data gatherers for AIX on System p, Linux on System x, and Linux on System z. Exploiters of the HTTP API provided by the DDS can send an HTTP request to retrieve performance data from the endpoints running the Linux or AIX operating systems. The DDS returns the requested data as a structured XML document. With the Resource Monitoring plug-in for IBM z/OS Management Facility (z/OSMF), performance metrics from connected AIX or Linux systems can be displayed in the same way and together with z/OS in heterogeneous customer environments.

Postprocessor XML Toolkit

RMF provides the new Postprocessor XML Toolkit which assists you in browsing XML Postprocessor reports with your internet browser, using the RMF XSL stylesheets. Furthermore, in the toolkit directory, you find hints and tips on how to exploit the produced reports in XML output format.

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