cachedat.c File Reference

#include "cc.h"

Go to the source code of this file.

Variables
KSPIN_LOCK	CcMasterSpinLock
LIST_ENTRY	CcCleanSharedCacheMapList
SHARED_CACHE_MAP_LIST_CURSOR	CcDirtySharedCacheMapList
SHARED_CACHE_MAP_LIST_CURSOR	CcLazyWriterCursor
KSPIN_LOCK	CcWorkQueueSpinlock
ULONG	CcNumberWorkerThreads = 0
ULONG	CcNumberActiveWorkerThreads = 0
LIST_ENTRY	CcIdleWorkerThreadList
LIST_ENTRY	CcExpressWorkQueue
LIST_ENTRY	CcRegularWorkQueue
LIST_ENTRY	CcPostTickWorkQueue
BOOLEAN	CcQueueThrottle = FALSE
ULONG	CcIdleDelayTick
LARGE_INTEGER	CcNoDelay
LARGE_INTEGER	CcFirstDelay = {(ULONG)-(3*LAZY_WRITER_IDLE_DELAY), -1}
LARGE_INTEGER	CcIdleDelay = {(ULONG)-LAZY_WRITER_IDLE_DELAY, -1}
LARGE_INTEGER	CcCollisionDelay = {(ULONG)-LAZY_WRITER_COLLISION_DELAY, -1}
LARGE_INTEGER	CcTargetCleanDelay = {(ULONG)-(LONG)(LAZY_WRITER_IDLE_DELAY * (LAZY_WRITER_MAX_AGE_TARGET + 1)), -1}
KSPIN_LOCK	CcVacbSpinLock
ULONG	CcNumberVacbs
PVACB	CcVacbs
PVACB	CcBeyondVacbs
LIST_ENTRY	CcVacbLru
ULONG	CcMaxVacbLevelsSeen = 1
ULONG	CcVacbLevelEntries = 0
PVACB *	CcVacbLevelFreeList = NULL
ULONG	CcVacbLevelWithBcbsEntries = 0
PVACB *	CcVacbLevelWithBcbsFreeList = NULL
KSPIN_LOCK	CcDeferredWriteSpinLock
LIST_ENTRY	CcDeferredWrites
ULONG	CcDirtyPageThreshold
ULONG	CcDirtyPageTarget
ULONG	CcPagesYetToWrite
ULONG	CcPagesWrittenLastTime = 0
ULONG	CcDirtyPagesLastScan = 0
ULONG	CcAvailablePagesThreshold = 100
ULONG	CcTotalDirtyPages = 0
MM_SYSTEMSIZE	CcCapturedSystemSize
LONG	CcAggressiveZeroCount
LONG	CcAggressiveZeroThreshold
ULONG	CcTune = 0
LAZY_WRITER	LazyWriter
NPAGED_LOOKASIDE_LIST	CcTwilightLookasideList
ULONG	CcThrowAway
ULONG	CcFastReadNoWait
ULONG	CcFastReadWait
ULONG	CcFastReadResourceMiss
ULONG	CcFastReadNotPossible
ULONG	CcFastMdlReadNoWait
ULONG	CcFastMdlReadWait
ULONG	CcFastMdlReadResourceMiss
ULONG	CcFastMdlReadNotPossible
ULONG	CcMapDataNoWait
ULONG	CcMapDataWait
ULONG	CcMapDataNoWaitMiss
ULONG	CcMapDataWaitMiss
ULONG	CcPinMappedDataCount
ULONG	CcPinReadNoWait
ULONG	CcPinReadWait
ULONG	CcPinReadNoWaitMiss
ULONG	CcPinReadWaitMiss
ULONG	CcCopyReadNoWait
ULONG	CcCopyReadWait
ULONG	CcCopyReadNoWaitMiss
ULONG	CcCopyReadWaitMiss
ULONG	CcMdlReadNoWait
ULONG	CcMdlReadWait
ULONG	CcMdlReadNoWaitMiss
ULONG	CcMdlReadWaitMiss
ULONG	CcReadAheadIos
ULONG	CcLazyWriteHotSpots
ULONG	CcLazyWriteIos
ULONG	CcLazyWritePages
ULONG	CcDataFlushes
ULONG	CcDataPages
PULONG	CcMissCounter = &CcThrowAway

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Variable Documentation

LONG CcAggressiveZeroCount

Definition at line 116 of file cachedat.c. Referenced by CcInitializeCacheManager(), and CcZeroData().

LONG CcAggressiveZeroThreshold

Definition at line 117 of file cachedat.c. Referenced by CcInitializeCacheManager(), and CcZeroData().

ULONG CcAvailablePagesThreshold = 100

Definition at line 102 of file cachedat.c.

PVACB CcBeyondVacbs

Definition at line 83 of file cachedat.c. Referenced by CcGetVacbLargeOffset(), CcInitializeVacbs(), CcRemapBcb(), and CcUnpinFileData().

MM_SYSTEMSIZE CcCapturedSystemSize

Definition at line 109 of file cachedat.c. Referenced by CcInitializeCacheManager(), and CcLazyWriteScan().

LIST_ENTRY CcCleanSharedCacheMapList

Definition at line 30 of file cachedat.c. Referenced by CcAcquireByteRangeForWrite(), CcInitializeCacheManager(), CcInitializeCacheMap(), and CcUnpinFileData().

LARGE_INTEGER CcCollisionDelay = {(ULONG)-LAZY_WRITER_COLLISION_DELAY, -1}

Definition at line 67 of file cachedat.c. Referenced by CcPurgeCacheSection().

ULONG CcCopyReadNoWait

Definition at line 188 of file cachedat.c. Referenced by CcCopyRead(), and NtQuerySystemInformation().

ULONG CcCopyReadNoWaitMiss

Definition at line 190 of file cachedat.c. Referenced by CcCopyRead(), and NtQuerySystemInformation().

ULONG CcCopyReadWait

Definition at line 189 of file cachedat.c. Referenced by CcCopyRead(), CcFastCopyRead(), and NtQuerySystemInformation().

ULONG CcCopyReadWaitMiss

Definition at line 191 of file cachedat.c. Referenced by CcCopyRead(), CcFastCopyRead(), and NtQuerySystemInformation().

ULONG CcDataFlushes

Definition at line 203 of file cachedat.c. Referenced by IoSynchronousPageWrite(), and NtQuerySystemInformation().

ULONG CcDataPages

Definition at line 204 of file cachedat.c. Referenced by IoSynchronousPageWrite(), and NtQuerySystemInformation().

LIST_ENTRY CcDeferredWrites

Definition at line 96 of file cachedat.c. Referenced by CcCanIWrite(), CcDeferWrite(), CcFlushCache(), CcInitializeCacheManager(), CcLazyWriteScan(), CcPostDeferredWrites(), CcUnpinRepinnedBcb(), CcWorkerThread(), and CcWriteBehind().

KSPIN_LOCK CcDeferredWriteSpinLock

Definition at line 95 of file cachedat.c. Referenced by CcCanIWrite(), CcDeferWrite(), CcInitializeCacheManager(), and CcPostDeferredWrites().

ULONG CcDirtyPagesLastScan = 0

Definition at line 101 of file cachedat.c. Referenced by CcLazyWriteScan().

ULONG CcDirtyPageTarget

Definition at line 98 of file cachedat.c. Referenced by CcInitializeCacheManager(), and CcLazyWriteScan().

ULONG CcDirtyPageThreshold

Definition at line 97 of file cachedat.c. Referenced by CcCanIWrite(), and CcInitializeCacheManager().

SHARED_CACHE_MAP_LIST_CURSOR CcDirtySharedCacheMapList

Definition at line 31 of file cachedat.c. Referenced by CcFlushCache(), CcGetDirtyPages(), CcGetFlushedValidData(), CcGetVacbMiss(), CcInitializeCacheManager(), CcInitializeCacheMap(), CcIsThereDirtyData(), CcMdlWriteComplete2(), CcPerformReadAhead(), CcPurgeCacheSection(), CcSetDirtyInMask(), CcSetDirtyPinnedData(), CcSetFileSizes(), CcUninitializeCacheMap(), and CcZeroEndOfLastPage().

LIST_ENTRY CcExpressWorkQueue

Definition at line 52 of file cachedat.c. Referenced by CcInitializeCacheManager(), CcScheduleReadAhead(), and CcWorkerThread().

ULONG CcFastMdlReadNotPossible

Definition at line 174 of file cachedat.c. Referenced by FsRtlMdlReadDev(), and NtQuerySystemInformation().

ULONG CcFastMdlReadNoWait

Definition at line 171 of file cachedat.c. Referenced by NtQuerySystemInformation().

ULONG CcFastMdlReadResourceMiss

Definition at line 173 of file cachedat.c. Referenced by NtQuerySystemInformation().

ULONG CcFastMdlReadWait

Definition at line 172 of file cachedat.c. Referenced by FsRtlMdlReadDev(), and NtQuerySystemInformation().

ULONG CcFastReadNotPossible

Definition at line 169 of file cachedat.c. Referenced by FsRtlCopyRead(), and NtQuerySystemInformation().

ULONG CcFastReadNoWait

Definition at line 166 of file cachedat.c. Referenced by FsRtlCopyRead(), and NtQuerySystemInformation().

ULONG CcFastReadResourceMiss

Definition at line 168 of file cachedat.c. Referenced by FsRtlCopyRead(), and NtQuerySystemInformation().

ULONG CcFastReadWait

Definition at line 167 of file cachedat.c. Referenced by FsRtlCopyRead(), and NtQuerySystemInformation().

LARGE_INTEGER CcFirstDelay = {(ULONG)-(3*LAZY_WRITER_IDLE_DELAY), -1}

Definition at line 65 of file cachedat.c. Referenced by CcScheduleLazyWriteScan().

LARGE_INTEGER CcIdleDelay = {(ULONG)-LAZY_WRITER_IDLE_DELAY, -1}

Definition at line 66 of file cachedat.c. Referenced by CcCanIWrite(), and CcScheduleLazyWriteScan().

ULONG CcIdleDelayTick

Definition at line 63 of file cachedat.c. Referenced by CcFlushCache(), and CcInitializeCacheManager().

LIST_ENTRY CcIdleWorkerThreadList

Definition at line 51 of file cachedat.c. Referenced by CcInitializeCacheManager(), CcPostWorkQueue(), and CcWorkerThread().

ULONG CcLazyWriteHotSpots

Definition at line 200 of file cachedat.c. Referenced by CcFlushCache().

ULONG CcLazyWriteIos

Definition at line 201 of file cachedat.c. Referenced by CcFlushCache(), and NtQuerySystemInformation().

ULONG CcLazyWritePages

Definition at line 202 of file cachedat.c. Referenced by CcFlushCache(), and NtQuerySystemInformation().

SHARED_CACHE_MAP_LIST_CURSOR CcLazyWriterCursor

Definition at line 32 of file cachedat.c. Referenced by CcInitializeCacheManager(), and CcLazyWriteScan().

ULONG CcMapDataNoWait

Definition at line 176 of file cachedat.c. Referenced by CcMapData(), and NtQuerySystemInformation().

ULONG CcMapDataNoWaitMiss

Definition at line 178 of file cachedat.c. Referenced by CcMapData(), and NtQuerySystemInformation().

ULONG CcMapDataWait

Definition at line 177 of file cachedat.c. Referenced by CcMapData(), and NtQuerySystemInformation().

ULONG CcMapDataWaitMiss

Definition at line 179 of file cachedat.c. Referenced by CcMapData(), and NtQuerySystemInformation().

KSPIN_LOCK CcMasterSpinLock

Definition at line 29 of file cachedat.c. Referenced by CcInitializeCacheManager(), and KiInitializeKernel().

ULONG CcMaxVacbLevelsSeen = 1

Definition at line 85 of file cachedat.c. Referenced by CcCreateVacbArray(), CcDrainVacbLevelZone(), CcExtendVacbArray(), CcGetVacbMiss(), and CcReferenceFileOffset().

ULONG CcMdlReadNoWait

Definition at line 193 of file cachedat.c. Referenced by NtQuerySystemInformation().

ULONG CcMdlReadNoWaitMiss

Definition at line 195 of file cachedat.c. Referenced by NtQuerySystemInformation().

ULONG CcMdlReadWait

Definition at line 194 of file cachedat.c. Referenced by CcMdlRead(), and NtQuerySystemInformation().

ULONG CcMdlReadWaitMiss

Definition at line 196 of file cachedat.c. Referenced by CcMdlRead(), and NtQuerySystemInformation().

PULONG CcMissCounter = &CcThrowAway

Definition at line 206 of file cachedat.c. Referenced by CcCopyRead(), CcFastCopyRead(), CcMapData(), CcMdlRead(), CcPerformReadAhead(), CcPinRead(), CcPreparePinWrite(), and IoPageRead().

LARGE_INTEGER CcNoDelay

Definition at line 64 of file cachedat.c. Referenced by CcCanIWrite(), CcFlushCache(), and CcWriteBehind().

ULONG CcNumberActiveWorkerThreads = 0

Definition at line 50 of file cachedat.c. Referenced by CcPostWorkQueue(), and CcWorkerThread().

ULONG CcNumberVacbs

Definition at line 76 of file cachedat.c. Referenced by CcInitializeVacbs().

ULONG CcNumberWorkerThreads = 0

Definition at line 49 of file cachedat.c. Referenced by CcInitializeCacheManager().

ULONG CcPagesWrittenLastTime = 0

Definition at line 100 of file cachedat.c. Referenced by CcLazyWriteScan().

ULONG CcPagesYetToWrite

Definition at line 99 of file cachedat.c. Referenced by CcAcquireByteRangeForWrite(), CcLazyWriteScan(), CcUnpinFileData(), and CcWriteBehind().

ULONG CcPinMappedDataCount

Definition at line 181 of file cachedat.c. Referenced by CcPinMappedData(), and NtQuerySystemInformation().

ULONG CcPinReadNoWait

Definition at line 183 of file cachedat.c. Referenced by CcPinRead(), and NtQuerySystemInformation().

ULONG CcPinReadNoWaitMiss

Definition at line 185 of file cachedat.c. Referenced by CcPinRead(), and NtQuerySystemInformation().

ULONG CcPinReadWait

Definition at line 184 of file cachedat.c. Referenced by CcPinRead(), and NtQuerySystemInformation().

ULONG CcPinReadWaitMiss

Definition at line 186 of file cachedat.c. Referenced by CcPinRead(), and NtQuerySystemInformation().

LIST_ENTRY CcPostTickWorkQueue

Definition at line 54 of file cachedat.c. Referenced by CcInitializeCacheManager(), CcLazyWriteScan(), and CcWaitForCurrentLazyWriterActivity().

BOOLEAN CcQueueThrottle = FALSE

Definition at line 56 of file cachedat.c. Referenced by CcPostWorkQueue(), and CcWorkerThread().

ULONG CcReadAheadIos

Definition at line 198 of file cachedat.c. Referenced by CcPerformReadAhead(), and NtQuerySystemInformation().

LIST_ENTRY CcRegularWorkQueue

Definition at line 53 of file cachedat.c. Referenced by CcInitializeCacheManager(), CcLazyWriteScan(), CcScanDpc(), and CcWorkerThread().

LARGE_INTEGER CcTargetCleanDelay = {(ULONG)-(LONG)(LAZY_WRITER_IDLE_DELAY * (LAZY_WRITER_MAX_AGE_TARGET + 1)), -1}

Definition at line 68 of file cachedat.c.

ULONG CcThrowAway

Definition at line 160 of file cachedat.c. Referenced by CcCopyRead(), CcFastCopyRead(), CcMapData(), CcMdlRead(), CcPerformReadAhead(), CcPinRead(), and CcPreparePinWrite().

ULONG CcTotalDirtyPages = 0

Definition at line 103 of file cachedat.c. Referenced by CcAcquireByteRangeForWrite(), CcCanIWrite(), CcDeleteMbcb(), CcDeleteSharedCacheMap(), CcFreeActiveVacb(), CcLazyWriteScan(), CcSetDirtyInMask(), CcSetDirtyPinnedData(), CcUnpinFileData(), and CcWorkerThread().

ULONG CcTune = 0

Definition at line 123 of file cachedat.c.

NPAGED_LOOKASIDE_LIST CcTwilightLookasideList

Definition at line 131 of file cachedat.c. Referenced by CcInitializeCacheManager().

ULONG CcVacbLevelEntries = 0

Definition at line 86 of file cachedat.c. Referenced by CcAllocateVacbLevel(), CcDeallocateVacbLevel(), CcDrainVacbLevelZone(), CcExtendVacbArray(), and CcPrefillVacbLevelZone().

PVACB* CcVacbLevelFreeList = NULL

Definition at line 87 of file cachedat.c. Referenced by CcAllocateVacbLevel(), CcDeallocateVacbLevel(), CcDrainVacbLevelZone(), and CcPrefillVacbLevelZone().

ULONG CcVacbLevelWithBcbsEntries = 0

Definition at line 88 of file cachedat.c. Referenced by CcAllocateVacbLevel(), CcDeallocateVacbLevel(), CcDrainVacbLevelZone(), and CcPrefillVacbLevelZone().

PVACB* CcVacbLevelWithBcbsFreeList = NULL

Definition at line 89 of file cachedat.c. Referenced by CcAllocateVacbLevel(), CcDeallocateVacbLevel(), CcDrainVacbLevelZone(), and CcPrefillVacbLevelZone().

LIST_ENTRY CcVacbLru

Definition at line 84 of file cachedat.c. Referenced by CcGetVacbMiss(), and CcInitializeVacbs().

PVACB CcVacbs

Definition at line 82 of file cachedat.c. Referenced by CcGetVacbLargeOffset(), CcInitializeVacbs(), CcRemapBcb(), and CcUnpinFileData().

KSPIN_LOCK CcVacbSpinLock

Definition at line 75 of file cachedat.c. Referenced by CcInitializeVacbs(), and KiInitializeKernel().

KSPIN_LOCK CcWorkQueueSpinlock

Definition at line 48 of file cachedat.c. Referenced by CcInitializeCacheManager(), CcPostWorkQueue(), and CcWorkerThread().

LAZY_WRITER LazyWriter

Definition at line 129 of file cachedat.c. Referenced by CcAllocateInitializeBcb(), CcCanIWrite(), CcDeallocateBcb(), CcDeferWrite(), CcFlushCache(), CcGetFlushedValidData(), CcGetVacbMiss(), CcInitializeCacheManager(), CcInitializeCacheMap(), CcLazyWriteScan(), CcMdlWriteComplete2(), CcPerformReadAhead(), CcPurgeCacheSection(), CcScanDpc(), CcScheduleLazyWriteScan(), CcSetDirtyInMask(), CcSetDirtyPinnedData(), CcSetFileSizes(), CcUninitializeCacheMap(), CcWaitForCurrentLazyWriterActivity(), and CcZeroEndOfLastPage().

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