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Prolog Control Block Contents CCFBK DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
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| CCFBK Prolog | Top of page |
NAME : HCPCCFBK
DESCRIPTION: CPU-Measurement Counter Facility Counters
DSECT : CCFBK
FUNCTION : Mapping of the CPU-Measurement Facility Counters
for all supported Counter First Version Number (CFVN)
and Counter Second Version Number (CSVN) combinations.
The MT counter set data is stored in the CORBK every
100 milliseconds whenever MT is enabled. Reporting
in Monitor D5 R20 (MRPRCMFM) is not subject to the
MONITOR SAMPLE command CPUMFC operand so HCPCCF is not
involved in extraction of the MT counters.
LOCATED BY : PLSCCFBK
CREATED BY : HCPMPS (when a PLSBK is allocated)
DELETED BY : HCPMPS (when a PLSBK is released)
REFERENCES : none
SERIALIZED : Processor Local - updates are only made on the CPU
whose PLSBK points to this instance of the CCFBK.
Monitor Command Lock (MND_CMD_LOCK) - the collection
task is serialized by this lock to prevent a race
between two tasks collecting counters in the CCFBK
on each CPU.
RELOCATION CONSIDERATIONS : None
COMPATIBILITY AND MIGRATION CONCERNS : The format of this control block is defined in "The
Set-Program-Parameter and CPU-Measurement Facilities"
book and should not be modified. If new CFVN/CSVN
combinations are created, new mappings will need
to be added to support them.
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| CCFBK Control Block Content | Top of page |
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| CCFBK Storage Layout | Top of page |
*** CCFBK - CPU-Measurement Counter Facility Counters
*
* +---------------------------+---------------------------+
* 0 | CCFCTLCD | CCFCPUSP |
* +-------------+-------------+-------------+-------------+
* 8 | CCFCMFAC |/////////////| CCFCFVN | CCFCSVN |
* +-------------+-------------+-------------+-------------+
* 10 | CCFTOD |
* +-------------------------------------------------------+
* 18 | |
* = CCFDATA =
* | |
* +-------------------------------------------------------+
* 918
*
*** CCFBK - CPU-Measurement Counter Facility Counters
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| CCFBK Cross Reference | Top of page |
Symbol Dspl Value -------------- ---- ----- CCFBASCO 0018 01 CCFBSIZE 0018 00000918 CCFCFVN 000C CCFCMFAC 0008 CCFCPUSP 0004 CCFCRYCO 0018 03 CCFCSVN 000E CCFCTLCD 0000 CCFDATA 0018 CCFDATADWS 0018 00000120 CCFEXTCO 0018 00 CCFMTDCO 0018 05 CCFMTRCO 0018 09 CCFPROCO 0018 02 CCFSIZE 0018 00000123 CCFTOD 0010 CCF04C1 0018 000001C0 CCF04C2 0018 000001C1 |
Copyright IBM Corporation, 1990, 2022