New features, functions, and support for RMF
RMF support for multithreading
- If enabled, multithreading uses CPU resources more efficiently
when a unit of work (thread) running on a core encounters a cache
miss. When one thread takes a cache miss and can no longer make progress,
the core will be able to switch to running a different thread that
is ready to execute.
See z/OS MVS System Management Facilities (SMF) for a description of the updated SMF records 70, 71, and 72.
See z/OS RMF Report Analysis for a description of changes to:- CPU - CPU Activity report
- ENCLAVE - Enclave Report
- OPD - OMVS Process Data Report
- CPC - CPC Capacity Report
- PROC - Processor Delays Report
- PROCU - Processor Usage Report
- SYSINFO - System Information Report
- TRACE - Trace Activity report
- WLMGL - Workload Activity report
See z/OS RMF Programmer's Guide for a description of changes to:- CPC - Tabular report data table ERBCPCT3
- Fields in the CPC report header
- SYSINFO - Tabular report data table ERBSYST3
- Fields in the SYSINFO report header
- ERBCPCDB - CPC data control block
- ERBCPUG3 - Processor data control block
- ERBOPDG3 - OMVS process data table
- IBMz_CEC
- IBMz_ComputerSystem
See z/OS RMF User's Guide for a description of changes to:- CPU Activity - SMF record type 70-1
- Workload Activity - SMF record type 72-3
- RMF support for real storage configurations of up to 4 TB in a
single LPAR
- RMF has enhanced SMF records 71 and 75 to enable the Paging Activity
(PAGING) and Page Data Set Activity (PAGESP) reports to support real
storage configurations of up to 4 TB in a single LPAR.
See z/OS MVS System Management Facilities (SMF) for a description of the updated SMF records 71 and 75.
See z/OS RMF Report Analysis for a description of the PAGING and PAGESP reports.
- RMF support for new CHPID type CS5
- RMF has enhanced the RMF Postprocessor CF Activity report (Subchannel
Activity section and CF to CF Activity section) and the Monitor III
CFSYS Report to provide extended path attributes, which include latency
and degraded mode, for the CS5 CHPID type when the enhanced-reporting-of-channel-path-characteristics
(ERCPC) facility is active. Physical information, such as how the
CHPID maps to a physical link, adapter and port information, and the
CHPID's SAP affinity, are also provided for the new CS5 CHPID type.
Data related to CHPID type CS5 is stored in SMF record 74-4.
See z/OS RMF Report Analysis for a description of these reports.
See z/OS MVS System Management Facilities (SMF) for a description of the updated SMF record 74-4.
- Enhanced Crypto Hardware Activity report
- RMF has enhanced the Postprocessor Crypto Hardware Activity report
to provide activity measurements from the Crypto Express5S (CEX5)
card configured in one of these ways:
- Cryptographic CCA coprocessor
- Cryptographic PKCS11 coprocessor
- Cryptographic accelerator
- RSA (Ron Rivest, Adi Shamir and Leonard Adleman) Digital Signature Generate and Verify callable services
- ECC (Elliptic Curve Cryptography) Digital Signature Generate and Verify callable services
- AES (Advanced Encryption Standard ) MAC (Message Authentication Code) Generate and Verify callable services
- FPE (Format Preserving Encryption) Encipher, Decipher and Translate callable services
New overview conditions are provided for the Postprocessor, based on the enhanced SMF record 70-2.
See z/OS RMF Report Analysis for a description of this report.
See z/OS MVS System Management Facilities (SMF) for a description of the enhanced SMF record 70-2.
- Exploitation of IBM® System z® Integrated Information Processors
- The RMF Monitor III data gatherer RMFGAT has been entitled to partially run on IBM System z Integrated Information Processors (zIIPs). A new Monitor III gatherer option ZIIPUSE/NOZIIPUSE is introduced to determine whether the RMFGAT address space is eligible for zIIP exploitation.
- Statistics about CF structures in storage class memory
- Storage class memory (SCM) usage and statistics information is
available for coupling facilities and structures that are allocated
with storage class memory.
RMF provides SCM related information in SMF record type 74.4, and in the SCM Structure Summary and the Storage Summary of the Usage Summary section in the Postprocessor Coupling Facility Activity report.
For structures allocated with SCM, the Monitor III Coupling Facility Activity (CFACT) report displays a new Structure Details pop-up window, showing SCM measurements and general structure data.
In addition, enhancements to SMF record 74.4 show new overview conditions for the postprocessor.
- Monitoring PCIe and zEDC activity
- A new Postprocessor PCIE Activity Report is
available in XML output format and provides measurements about the
activity of PCI Express® based
functions (PCIe functions) and their exploitation of hardware accelerators. A PCIe function is captured by the report if one of the following hardware feature activities has been measured:
- Remote Direct Memory Access (RDMA) over Converged Ethernet
- zEnterprise® Data Compression (zEDC) capability using zEDC Express.
- Support of Group Capacity enhancements and absolute LPAR capacity limits
- WLM introduces negative phantom weights for softcapping and uses
initial weights to distribute the group capping limit when it becomes
necessary to enforce the group limits. RMF adds
new fields to SMF record 70-1 and takes the new WLM functionality
into account when reporting about capacity groups.
RMF adds support to report on the new absolute LPAR capacity limit that can be defined using the logical partition controls of the Hardware Management Console (HMC). The Postprocessor Partition Data report and the Monitor III CPC Capacity report display whether either Initial Capping or an absolute LPAR capacity limit was active during a reporting interval.
Use the new RMF postprocessor overview conditions, based on SMF record 70-1, for a more detailed analysis of the hardware capping options.
- New channel path details in Monitor III and postprocessor coupling facility reports
- New channel path detail information is available for CIB and CFP
channels paths. RMF provides
this information in both the Subchannel Activity and
the CF to CF Activity sections of the Postprocessor
Coupling Facility Activity report.
Also, the Monitor III Coupling Facility Systems report is enhanced to provide a new Channel Path Details section in the Subchannels and Paths pop-up window.
In addition, RMF stores the newly gathered channel path detail information for coupling facilities into SMF record 74.4.
- Enhanced Postprocessor Crypto Hardware Activity report
- RMF enhances the Postprocessor
Crypto Hardware Activity report to provide
activity measurements from the Crypto Express4S (CEX4) card configured
in one of the three ways:
- Cryptographic CCA coprocessor
- Cryptographic PKCS11 coprocessor
- Cryptographic accelerator
New overview conditions are provided for the postprocessor, based on the enhanced SMF record 70-2.
- Additional Postprocessor reports in XML format
- By specifying appropriate ddnames in the job for the postprocessor
output, users can request the following reports in XML output format:
- Cache Subsystem Activity
- Channel Path Activity
- Coupling Facility Activity
- Enqueue Activity
- Hierarchical File System Statistics
- I/O Queuing Activity
- Page Data Set Activity
- PCIE Activity Report
- Shared Device Activity
- Virtual Storage Activity
- XCF Activity
- Cross platform monitoring support for Windows
- Besides the support of the AIX® and Linux operating systems, RMF XP has been extended to support Windows systems as monitored endpoints. You can display the Resource Monitoring plug-in for z/OS® Management Facility (z/OSMF) performance metrics from Windows systems the same way, and together, with metrics from other platforms.
- SMF Recording Facility for AIX, Linux and Windows
- You can now use RMF XP for long-term performance analysis and capacity planning of your AIX, Linux and Windows systems. For this purpose, you can write performance data collected from the monitored endpoints to the new SMF record type 104.
- Controlling the invocation of data reduction exit routines
- RMF now controls the names
of the data reduction exit routines that are invoked by callers of RMF Monitor II sysplex data gathering
service ERB2XDGS, or Monitor III Sysplex Data Retrieval service ERB3XDRS.
z/OS RMF Report Analysis (see Note) describes how to apply the required access control. Especially when an unauthorized application is making use of the <exit_name> parameter, a new RACF® resource profile of class FACILITY is required.
- Monitoring of pageable large pages activity
- RMF provides enhanced performance
measurements about memory objects and frames in the reports listed
here.
- In the Postprocessor Paging Activity report,
the Memory Objects and Frames section has been renamed
to Memory Objects and High Virtual Storage Frames,
which now contains the following enhanced measurements:
- additional metrics for high virtual common and shared storage frames
- metrics for 1 MB frames are now reported in more detail
- number of auxiliary storage slots for frames from virtual common and shared storage backed on DASD.
In addition, RMF provides new overview conditions for the postprocessor based on SMF record 71.
- In the Postprocessor Virtual Storage Activity report, the information about 1 MB frames in the Private Area Detail section is now separated into the categories fixed and pageable.
- The Monitor III Storage Memory Objects report now provides measurements for 1 MB frames in more detail at system and address space level.
- In the Postprocessor Paging Activity report,
the Memory Objects and Frames section has been renamed
to Memory Objects and High Virtual Storage Frames,
which now contains the following enhanced measurements:
- Support of Storage Class Memory for paging
- RMF provides measurements
about storage type storage class memory (SCM) in the following reports:
- The Postprocessor as well as the Monitor II Page Data Set Activity reports provide information about SCM blocks used by the Auxiliary Storage Manager (ASM).
- The Postprocessor Paging Activity report provides information about shared and high virtual shared and common frames backed on SCM and also provides information about SCM blocks used by ASM.