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. 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 = * | | * +-------------------------------------------------------+ * 818 * *** CCFBK - CPU-Measurement Counter Facility Counters |
CCFBK Cross Reference | Top of page |
Symbol Dspl Value -------------- ---- ----- CCFBSIZE 0018 00000818 CCFCFVN 000C CCFCMFAC 0008 CCFCPUSP 0004 CCFCSVN 000E CCFCTLCD 0000 CCFDATA 0018 CCFDATADWS 0018 00000100 CCFSIZE 0018 00000103 CCFTOD 0010 |
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