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IOCTL_DISK_PERFORMANCE_OFF IOCTL (winioctl.h)

Disables the performance counters that provide disk performance information.

To perform this operation, call the DeviceIoControl function with the following parameters.

BOOL DeviceIoControl(
 (HANDLE) hDevice, 	// handle to device
 IOCTL_DISK_PERFORMANCE_OFF,	// dwIoControlCode
 NULL, 	// lpInBuffer
 0, 	// nInBufferSize
 NULL, 	// lpOutBuffer
 0, 	// nOutBufferSize
 (LPDWORD) lpBytesReturned, 	// number of bytes returned
 (LPOVERLAPPED) lpOverlapped 	// OVERLAPPED structure
);

Remarks

To enable these performance counters, use the IOCTL_DISK_PERFORMANCE control code.

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Header winioctl.h (include Windows.h)

See also

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