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This class is the event type class for disk I/O flush events.
The following syntax is simplified from MOF code.
Syntax
[EventType{14}, EventTypeName{"FlushBuffers"}]
class DiskIo_TypeGroup3 : DiskIo
{
uint32 DiskNumber;
uint32 IrpFlags;
uint64 HighResResponseTime;
uint32 Irp;
uint32 IssuingThreadId;
};
Members
The DiskIo_TypeGroup3 class has these types of members:
Properties
The DiskIo_TypeGroup3 class has these properties.
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DiskNumber
-
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Data type: uint32
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Access type: Read-only
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Qualifiers: WmiDataId (1)
Number that identifies the physical disk.
-
-
HighResResponseTime
-
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Data type: uint64
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Access type: Read-only
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Qualifiers: WmiDataId (3)
CPU tick count from the beginning of the operation to the end of the operation.
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Irp
-
I/O request packet. This property identifies the I/O activity.
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IrpFlags
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Can contain one or more of the following I/O request packet flags (defined in Ntddk.h, which is a DDK header file):
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IRP_NOCACHE
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IRP_PAGING_IO
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IRP_MOUNT_COMPLETION
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IRP_SYNCHRONOUS_API
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IRP_ASSOCIATED_IRP
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IRP_BUFFERED_IO
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IRP_DEALLOCATE_BUFFER
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IRP_INPUT_OPERATION
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IRP_SYNCHRONOUS_PAGING_IO
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IRP_CREATE_OPERATION
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IRP_READ_OPERATION
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IRP_WRITE_OPERATION
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IRP_CLOSE_OPERATION
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IRP_DEFER_IO_COMPLETION
-
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IssuingThreadId
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Data type: uint32
-
Access type: Read-only
-
Qualifiers: WmiDataId (5)
The identifier of the issuing thread.
Windows Server 2008 R2, Windows Server 2008, Windows 7 and Windows Vista: This property is not supported.
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Requirements
Requirement | Value |
---|---|
Minimum supported client |
Windows Vista [desktop apps only] |
Minimum supported server |
Windows Server 2008 [desktop apps only] |
See also