FsRtlIncrementCcFastReadResourceMiss - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers
// ntifs.h

VOID FsRtlIncrementCcFastReadResourceMiss();
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-ntifs-fsrtlincrementccfastreadresourcemiss)

FsRtlIncrementCcFastReadResourceMiss function

Description

The FsRtlIncrementCcFastReadResourceMiss routine increments the CcFastReadNotPossible performance counter in a per processor control block of cache manager system counters.

Remarks

FsRtlIncrementCcFastReadResourceMiss increments the CcFastReadReadResourceMiss performance counter in the per processor control block of cache manager system counters. This counter indicates that a fast I/O read operation (FsRtlCopyRead) was called, but fast I/O was not possible because the file resource could not be acquired for shared access.

File system drivers should call this function to update the performance counter if the driver chooses to override the default fast I/O read handler.

See also

FsRtlCopyRead

FsRtlIncrementCcFastReadNoWait

FsRtlIncrementCcFastReadNotPossible

FsRtlIncrementCcFastReadWait