CCFBK | Back to Index page |
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. |
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 |
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 |
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