SMF 71 Memory size
- 13 Mar 2024
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SMF 71 Memory size
- Updated on 13 Mar 2024
- 10 Minutes to read
- Contributors
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Introduction
Record type 71 is written for each measurement interval and when the session is terminated. Record type 71 contains information about the demands made on the system paging facilities and the utilization of central storage and external page storage during the reporting interval.
As with all the SMF records RMF produces, it contains a header section followed by the RMF product section. These are followed by:
Paging data section Includes information on central storage pages for SQA, SPA, CSA, LSQA and REGIONS+SWA.
Fields
Stored in memoryData
| SMF Field | DB Column name | Description | Unit |
|---|---|---|---|
| recordType | Value is always ME71 | ||
| SMF71SID | sid | System identification (from the SID parameter). | |
| SMF71DAT | startTime | Date when the RMF measurement interval started. | |
| SMF71TME SMF71DTE | endTime | Time Date when the record was moved into the SMF buffer. | |
| SMF71SYN | syncTime | SYNC value in seconds. | |
| SMF71SNM | sysName | System name (r in the IEASYSxx parmlib member). | |
| SMF71XNM | sysplex | Sysplex name ( in the COUPLExx parmlib member). | |
| SMF71MXQ | maxSqaFixFrames | Maximum number of SQA fixed frames in central storage. | |
| SMF71AVQ | avgSqaFixFrames | Average number of SQA fixed frames in central storage. | |
| SMF71MXC | maxCsaFixFrames | Maximum number of CSA fixed frames in central storage. | |
| SMF71AVC | avgCsaFixFrames | Average number of CSA fixed frames in central storage. | |
| SMF71MXP | maxCsaFrames | Maximum number of CSA central storage frames used, including RUCSA. | |
| SMF71AVP | avgCsaFrames | Average number of CSA central storage frames used, including RUCSA. | |
| SMF71MXV | maxVioSlots | Maximum number of local page data set slots allocated to VIO private area pages. | |
| SMF71LVV | avgVioSlots | Average number of local page data set slots allocated to VIO private area pages. Same as SMF71AVV but long floating point format. | |
| SMF71UAC | avgUnrefIntervalCsFrames | Average current system UIC during the interval (from MCTCurSystemUIC). | |
| SMF71UHC | maxUnrefIntervalCsFrames | Highest current system UIC during the interval (from MCTCurSystemUIC). | |
| SMF71CAM | minCsFramesAvail | Minimum number of available central storage frames. (Does not include 1 MB page frames.) | |
| SMF71CAX | maxCsFramesAvail | Maximum number of available central storage frames. | |
| SMF71CAA | avgcCsFramesAvail | Average number of available central storage frames. | |
| SMF71CLM | minLowImpCsFrames | Minimum number of low-impact central storage frames. | |
| SMF71CLX | maxLowImpCsFrames | Maximum number of low-impact central storage frames. | |
| SMF71CLA | avgLowImpCsFrames | Average number of low-impact central storage frames. | |
| SMF71CMM | minMedImpCsFrames | Minimum number of medium-impact central storage frames. | |
| SMF71CMX | maxMedImpCsFrames | Maximum number of medium-impact central storage frames. | |
| SMF71CMA | avgMedImpCsFrames | Average number of medium-impact central storage frames. | |
| SMF71CHM | minHigImpCsFrames | Minimum number of high-impact central storage frames. | |
| SMF71CHX | maxHigImpCsFrames | Maximum number of high-impact central storage frames. | |
| SMF71CHA | avgHigImpCsFrames | Average number of high-impact central storage frames. | |
| SMF71EAM | minExpFramesAvail | Minimum number of available Expanded Storage frames. | |
| SMF71MVI | minVioPagesCs | Minimum number of VIO pages in central storage. | |
| SMF71XVI | maxVioPagesCs | Maximum number of VIO pages in central storage. | |
| SMF71AVI | avgVioPagesCs | Average number of VIO pages in central storage. | |
| SMF71MHI | minHipPagesCs | Minimum number of hiperspace pages in central storage. | |
| SMF71XHI | maxHipPagesCs | Maximum number of hiperspace pages in central storage. | |
| SMF71AHI | avgHipPagesCs | Average number of hiperspace pages in central storage. | |
| SMF71VWS | numVioPagesCsWrite | Number of VIO pages written to central storage. | |
| SMF71VRS | numVioPagesCsRead | Number of VIO pages read from central storage. | |
| SMF71HWS | numHipPagesCsWrite | Number of hiperspace pages written to central storage. | |
| SMF71HRS | numHipPagesCsRead | Number of hiperspace pages read from central storage. | |
| SMF71MFB | minPageFixAbove16 | Minimum number of pages fixed between 16M and 2G. | |
| SMF71XFB | maxPageFixAbove16 | Maximum number of pages fixed between 16M and 2G. | |
| SMF71AFB | avgPageFixAbove16 | Average number of pages fixed between 16M and 2G. | |
| SMF71AGT | avgShrPageGrp | Average number of shared page groups in the system. | |
| SMF71AGC | avgShrPageGrpCs | Average number of shared page groups in the central storage. | |
| SMF71AGA | avgShrPageGrpAux | Average number of auxiliary slots in use for shared page groups. | |
| SMF71AGF | avgShrPageFix | Average number of shared page groups fixed in the system. | |
| SMF71AGB | avgShrPageFixBelow16 | Average number of shared page groups fixed below 16 MB in the system. | |
| SMF71ASI | numPginShr | Number of page-ins from auxiliary storage for shared page groups. | |
| SMF71PTH | avgShrPageVsAbove2g | Average number of shared pages in the system (with virtual storage address above the bar). | |
| SMF71PCH | avgShrPageCsAbove2g | Average number of shared pages in central storage (with virtual storage address above the bar). | |
| SMF71PAH | avgShrPageAuxAbove2g | Average number of shared pages in auxiliary storage (with virtual storage address above the bar). | |
| SMF71BLG | peakShrPageVsAbove2g | Maximum number of shared bytes from large virtual memory in a memory object for the entire system. | |
| SMF71PIH | numPginShrAbove2g | Number of page-ins from auxiliary storage for shared pages. | |
| SMF71POH | numPgouShrAbove2g | Number of page-outs to auxiliary storage for shared pages (with virtual storage address above the bar). | |
| SMF71COA | avgObjHvCsa | Average number of memory objects allocated in the high virtual common storage of the system. | |
| SMF71SOA | avgObjHvShrStor | Average number of memory objects allocated in the high virtual shared storage of the system. | |
| SMF71LOA | avgObjFixPage1m | Average number of fixed memory objects that are allocated in the system and can be backed in 1 MB frames. | |
| SMF71LRA | avgPage1mCs | Average number of 1 MB pages backed in central storage. | |
| SMF71CRA | avgPageHvCsa4k | Average number of pages from high virtual common storage that are backed in central storage | 4 kilobyte |
| SMF71CFA | avgPageFixHvCsa4k | Average number of fixed pages from high virtual common storage that are backed in central storage | 4 kilobyte |
| SMF71SRA | avgPageHvShr4k | Average number of pages from high virtual shared storage that are backed in central storage | 4 kilobyte |
| SMF71CSA | avgAuxSlotHvCsaDasd | Average number of auxiliary storage slots used for high virtual common pages that are backed on DASD. | |
| SMF71TLS | totSwapLog | Total number of logical swaps. | |
| SMF71L1A | totFrame1mFixObj | Average total number of 1 MB frames that can be used by fixed memory objects. | |
| SMF71L3A | avgFrame1mInuseFixObj | Average number of 1 MB frames in the LFAREA that are in-use by fixed memory objects . | |
| SMF71L4A | totFrame1mPageObj | Average total number of 1 MB frames that can be used by pageable/DREF memory objects. | |
| SMF71L5A | avgFrame1mNotuseDrefObj | Average number of 1 MB frames that are not used by pageable/DREF memory objects. | |
| SMF71L6A | avgFrame1mInuseDrefObj | Average number of 1 MB frames that are used by pageable/DREF memory objects. | |
| SMF71L7A | avgFrame1mNotuse | Average number of 1 MB frames in the LFAREA that are not in-use. Same as SMF71L2A (calculated differently). | |
| SMF71S1A | avgHigVshrPages | Average total number of high virtual shared memory pages | 4 kilobyte |
| SMF71S5A | avgAuxSlotHigVshrPageDasd | Average number of auxiliary storage slots used for high virtual shared memory pages backed on DASD. | |
| SMF71S6A | avgAuxSlotHigVshrPageSCM | Average number of high virtual shared memory pages backed on SCM storage. | |
| SMF71C1A | avgTotHigVCsPages | Average total number of high virtual common memory pages. | 4 kilobyte |
| SMF71C4A | avgAuxSlotHvcMemPageSCM | Average number of high virtual common memory pages backed on SCM storage. | |
| SMF71S7A | avgShrObjPageSCM | Average number of shared page groups backed on SCM storage. | |
| SMF71INT | seconds | Duration of the RMF measurement interval | second |
| SMF71MVS | mvsLevel | MVS software level (ZVvvrrmm). | |
| SMF71PRD | productName | Product name (RMF). | |
| SMF71MFV | rmfVersion | RMF version number. | |
| SMF71ASO | numPgouAuxShrPageGrp | Number of page-outs to auxiliary storage for shared page groups. | |
| SMF71BLP | numPginBlockPages | Number of blocked pages paged in (this does not include VIO or hiperspace pages). | |
| SMF71FIN | numFramesCsNucleus | Number of central storage frames in nucleus. | |
| SMF71HIN | numPginHipAuxtoCs | Number of hiperspace page-ins from auxiliary to central storage. | |
| SMF71HOT | numPgouHipCstoAux | Number of hiperspace page-outs from central to auxiliary storage. | |
| SMF71PIN | numPginNonVioAuxtoCs | Number of non-VIO page-ins from auxiliary to central storage. This field includes page-ins required through page faults, specific page requests, and page fixes. It does not include page reclaims or page-ins for VIO data sets. | |
| SMF71PMV | totPagesmovedCs | Total number of pages moved within central storage. | |
| SMF71POT | numPgouNonVioCstoAux | Number of non-VIO page-outs from central to auxiliary storage. This field includes page-outs required through specific page requests as well as those pages stolen by the paging supervisor through infrequent use. | |
| SMF71SIN | numPagesSwapIn | Number of pages swapped in. This field includes: LSQA, fixed pages, and those pages that the real storage manager determined to be active when the address space was swapped in. It does not include page reclaims. | |
| SMF71SOT | numPagesSwapOut | Number of pages swapped out. This field includes: LSQA, private area fixed pages, and private area non-fixed changed pages. | |
| SMF71TFC | numFramesCs | Number of page frames defined in central storage. (This field does not include frames occupied by the nucleus, frames marked as bad or offline, or frames used by HSA or PR/SM.) | |
| SMF71VIN | numPginVioAuxtoCs | Number of VIO page-ins from auxiliary to central storage. This field includes page-ins resulting from page faults or specific page requests on a VIO window. It does not include VIO swap-ins or page-ins for the common area. | |
| SMF71VOT | numPgouVioCstoAux | Number of VIO page-outs from central to auxiliary storage. This field includes page-outs resulting from specific page requests on a VIO window as well as those pages stolen by the paging supervisor through infrequent use. | |
| centralStorageSize | numFramesCs + numFramesCsNucleus | ||
| totPageRate | (numPginNonVioAuxtoCs + numPgouNonVioCstoAux + numPagesSwapIn + numPagesSwapOut + numPginVioAuxtoCs + numPgouVioCstoAux + numPginBlockPages + numPgouHipCstoAux + numPginHipAuxtoCs) / seconds | ||
| numPageFaultRate | |||
| demandPageRate | |||
| pageMoveRate | |||
| SMF71TSC | totLocalPageDataSetSlots | Total number of local page data set slots. | |
| SMF71DSC | nbLocalPageDataSetSlotsVIOPrivateAreaPages | Number of local page data set slots allocated to VIO private area pages. | |
| SMF71VSC | nbLocalPageDataSetSlotsNonVIOPrivateAreaPages | Number of local page data set slots allocated to non-VIO private area pages. | |
| SMF71NSC | nbUsableLocalPageDataSetSlotsNotAllocated | Number of usable local page data set slots that have not been allocated. | |
| SMF71S2A | avgSharedMemAllocatedCanBeBacked1M | Average number of shared memory objects that are allocated in the system and can be backed in 1 MB frames | |
| SMF71S3A | avgFramesSharedHighVirtual4KPages | Average number of frames in use for shared high virtual 4K pages | |
| SMF71S4A | avgHighVirtualSharedMem1MBackedCentralStorage | Average number of high virtual shared memory 1 MB pages backed in central storage | |
| SMF71C2A | avgHighVirtualCommonMem1Mfixed | Average number of high virtual common memory 1 MB fixed pages | |
| SMF71C3A | avgHighVirtualCommonMem1MBackedCentralStorage | Average number of high virtual common memory 1 MB pages backed in central storage | |
| SMF71CPA | avgHighCommonPagesInUse | Average number of high virtual common pages in-use | |
| SMF71LFA | max1MAllocatedLFAREA | The maximum number of fixed 1 MB pages that can be allocated as specified in the LFAREA parameter. | |
| SMF71L1M | minMax1MFrameFixed1MFrame | Lowest maximum number of 1 MB frames that can be used by fixed 1 MB pages. | |
| SMF71L1X | maxMax1MFrameFixed1MFrame | Highest maximum number of 1 MB frames that can be used by fixed 1 MB pages. | |
| SMF71PLM | min1MFrameInUsePageable1MFrame | Minimum number of 1 MB frames that are in-use by pageable 1 MB pages. | |
| SMF71PLX | max1MFrameInUsePageable1MFrame | Maximum number of 1 MB frames that are in-use by pageable 1 MB pages. | |
| SMF71PLA | avg1MFrameInUsePageable1MFrame | Average number of 1 MB frames that are in-use by pageable 1 MB pages. | |
| SMF71GOM | minFix2GMemAllocatedInSystem | Minimum number of fixed 2 GB memory objects allocated in the system | |
| SMF71GOX | maxFix2GMemAllocatedInSystem | Maximum number of fixed 2 GB memory objects allocated in the system | |
| SMF71GOA | avgFix2GMemAllocatedInSystem | Average number of fixed 2 GB memory objects allocated in the system | |
| SMF71GRM | min2GPageFixedCentralStorage | Minimum number of 2 GB pages fixed in central storage (same as SMF71GUM) | |
| SMF71GRX | max2GPageFixedCentralStorage | Maximum number of 2 GB pages fixed in central storage (same as SMF71GUX) | |
| SMF71GRA | avg2GPageFixedCentralStorage | Average number of 2 GB pages fixed in central storage (same as SMF71GUA) | |
| SMF71GUM | min2GLargeFrameAreaUsedByFixedMemory | Minimum number of 2 GB frames in the Large Frame Area that are in-use by fixed memory objects (same as SMF71GRM) | |
| SMF71GUX | max2GLargeFrameAreaUsedByFixedMemory | Maximum number of 2 GB frames in the Large Frame Area that are in-use by fixed memory objects (same as SMF71GRX) | |
| SMF71GUA | avg2GLargeFrameAreaUsedByFixedMemory | Average number of 2 GB frames in the Large Frame Area that are inuse by fixed memory objects (same as SMF71GRA) | |
| SMF71GUH | highWaterMark2GUsedBySystem | High water mark for the number of 2 GB frames that are used by the system | |
| SMF71GAM | min2GLargeFrameAreaNotUse | Minimum number of 2 GB frames in the Large Frame Area that are not in-use | |
| SMF71GAX | max2GLargeFrameAreaNotUse | Maximum number of 2 GB frames in the Large Frame Area that are not in-use | |
| SMF71GAA | avg2GLargeFrameAreaNotUse | Average number of 2 GB frames in the Large Frame Area that are not in-use | |
| SMF71GFM | minMax2GFrameUsedBy2GPages | Lowest maximum number of 2 GB frames that can be used by fixed 2 GB pages. | |
| SMF71GFX | maxMax2GFrameUsedBy2GPages | Highest maximum number of 2 GB frames that can be used by fixed 2 GB pages. | |
| SMF71GFA | avgMax2GFrameUsedBy2GPages | Average maximum number of 2 GB frames that can be used by fixed 2 GB pages. | |
| SMF71_DMemNumberofJobsUsingDmem_A | memNumberofJobsUsingDmem | Average number of address spaces using dedicated memory. | |
| SMF71_DMemTotal2G_A | memTotal2G | Average amount of online and offline dedicated memory in 2G units, including dedicated memory used by the system. | |
| SMF71_DMemTotalOnline2G_A | memTotalOnline2G | Average amount of online dedicated memory in 2G units, including dedicated memory used by the system. | |
| SMF71_DMemAvailable2G_A | memAvailable2G | Average amount of available dedicated memory in 2G units that can be used by address spaces | |
| SMF71_DMemRequested2G_A | memRequested2G | Average amount of requested dedicated memory in 2G units over all address spaces. | |
| SMF71_DMemMinRequested2G_A | memMinRequested2G | Average minimum amount of requested dedicated memory in 2G units over all address spaces. | |
| SMF71_DMemAssigned2G_A | memAssigned2G | Average amount of assigned dedicated memory over all address spaces. | |
| SMF71_DMemInUseAs2G_A | memInUsedAs2G | Average amount of dedicated memory used as 2G frames over all address spaces | |
| SMF71_DMemInUseAs1MFixed_A | memInUseAs1MFixed | Average amount of dedicated memory used as 1M fixed frames over all address spaces | |
| SMF71_DMemInUseAs1MPageable_A | memInUseAs1MPageable | Average amount of dedicated memory used as 1M pageable frames over all address spaces. | |
| SMF71_DMemInUseAs4K_A | memInUseAs4K | Average amount of dedicated memory used as 4K frames over all address spaces. |