DISK_PERFORMANCE

The DISK_PERFORMANCE structure provides disk performance information.

typedef struct _DISK_PERFORMANCE {

LARGE_INTEGER BytesRead;

LARGE_INTEGER BytesWritten;

LARGE_INTEGER ReadTime;

LARGE_INTEGER WriteTime;

DWORD ReadCount;

DWORD WriteCount;

DWORD QueueDepth;

} DISK_PERFORMANCE ;

Members

BytesRead

Specifies the number of bytes read.

BytesWritten

Specifies the number of bytes written.

ReadTime

Specifies the time it took to complete the read.

WriteTime

Specifies the time it took to complete the write.

ReadCount

Specifies the number of read operations.

WriteCount

Specifies the number of write operations.

QueueDepth

Specifies the depth of the queue.

Remarks

The DeviceIoControl function receives a DISK_PERFORMANCE structure in response to an IOCTL_DISK_PERFORMANCE device I/O operation.

See Also

DeviceIoControl, IOCTL_DISK_PERFORMANCE

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