https://git.reactos.org/?p=reactos.git;a=commitdiff;h=9ac2e9855af67e4442aaf198654f701dbb377591
commit 9ac2e9855af67e4442aaf198654f701dbb377591 Author: Pierre Schweitzer <[email protected]> AuthorDate: Sat Feb 24 14:02:33 2018 +0100 Commit: Pierre Schweitzer <[email protected]> CommitDate: Sat Feb 24 14:52:04 2018 +0100 [NTOSKRNL] Add the CcDataFlushes and CcDataPages counters --- ntoskrnl/cc/copy.c | 7 +++++++ ntoskrnl/ex/sysinfo.c | 4 ++-- ntoskrnl/include/internal/cc.h | 2 ++ ntoskrnl/io/iomgr/iofunc.c | 8 ++++++++ 4 files changed, 19 insertions(+), 2 deletions(-) diff --git a/ntoskrnl/cc/copy.c b/ntoskrnl/cc/copy.c index 496cef6d4d..8525d9f549 100644 --- a/ntoskrnl/cc/copy.c +++ b/ntoskrnl/cc/copy.c @@ -43,6 +43,13 @@ ULONG CcFastReadWait; ULONG CcFastReadNoWait; ULONG CcFastReadResourceMiss; +/* Counters: + * - Amount of pages flushed to the disk + * - Number of flush operations + */ +ULONG CcDataPages = 0; +ULONG CcDataFlushes = 0; + /* FUNCTIONS *****************************************************************/ VOID diff --git a/ntoskrnl/ex/sysinfo.c b/ntoskrnl/ex/sysinfo.c index 4db50e5b0b..ceb1d22842 100644 --- a/ntoskrnl/ex/sysinfo.c +++ b/ntoskrnl/ex/sysinfo.c @@ -709,8 +709,8 @@ QSI_DEF(SystemPerformanceInformation) Spi->CcReadAheadIos = 0; /* FIXME */ Spi->CcLazyWriteIos = CcLazyWriteIos; Spi->CcLazyWritePages = CcLazyWritePages; - Spi->CcDataFlushes = 0; /* FIXME */ - Spi->CcDataPages = 0; /* FIXME */ + Spi->CcDataFlushes = CcDataFlushes; + Spi->CcDataPages = CcDataPages; Spi->ContextSwitches = 0; /* FIXME */ Spi->FirstLevelTbFills = 0; /* FIXME */ Spi->SecondLevelTbFills = 0; /* FIXME */ diff --git a/ntoskrnl/include/internal/cc.h b/ntoskrnl/include/internal/cc.h index 32caa551b2..e91f1b4993 100644 --- a/ntoskrnl/include/internal/cc.h +++ b/ntoskrnl/include/internal/cc.h @@ -62,6 +62,8 @@ extern ULONG CcMapDataWait; extern ULONG CcMapDataNoWait; extern ULONG CcPinReadWait; extern ULONG CcPinReadNoWait; +extern ULONG CcDataPages; +extern ULONG CcDataFlushes; typedef struct _PF_SCENARIO_ID { diff --git a/ntoskrnl/io/iomgr/iofunc.c b/ntoskrnl/io/iomgr/iofunc.c index 19f54e070d..aa08bf7232 100644 --- a/ntoskrnl/io/iomgr/iofunc.c +++ b/ntoskrnl/io/iomgr/iofunc.c @@ -1039,6 +1039,14 @@ IoSynchronousPageWrite(IN PFILE_OBJECT FileObject, IOTRACE(IO_API_DEBUG, "FileObject: %p. Mdl: %p. Offset: %p \n", FileObject, Mdl, Offset); + /* Is the write originating from Cc? */ + if (FileObject->SectionObjectPointer != NULL && + FileObject->SectionObjectPointer->SharedCacheMap != NULL) + { + ++CcDataFlushes; + CcDataPages += BYTES_TO_PAGES(MmGetMdlByteCount(Mdl)); + } + /* Get the Device Object */ DeviceObject = IoGetRelatedDeviceObject(FileObject);
