Based on Windows Vista I/O priorities manager, Windows 7 provides a new class to retrieve information/statistics about about Low I/O priority counts. Function: NtQuerySystemInformation Class: SystemLowPriorityInformation Privilege: None Output size: 0×24 bytes The output structure is the following. typedef struct _LOW_PRIORITY_INFORMATION { ULONG IoLowPriorityReadOperationCount; ULONG IoLowPriorityWriteOperationCount; ULONG IoKernelIssuedIoBoostedCount; ULONG IoPagingReadLowPriorityCount; ULONG IoPagingReadLowPriorityBumpedCount; ULONG IoPagingWriteLowPriorityCount; ULONG [ Read More ]
