Syntax
[EventType{36}, EventTypeName{"CSwitch"}]class CSwitch : Thread_V2
{
uint32 NewThreadId;
uint32 OldThreadId;
sint8 NewThreadPriority;
sint8 OldThreadPriority;
uint8 PreviousCState;
sint8 SpareByte;
sint8 OldThreadWaitReason;
sint8 OldThreadWaitMode;
sint8 OldThreadState;
sint8 OldThreadWaitIdealProcessor;
uint32 NewThreadWaitTime;
uint32 Reserved;
};
Methods
The CSwitch class does not define any methods.
Properties
The CSwitch class defines the following properties.
- NewThreadId
-
- Data type: uint32
- Access type: Read-only
- Qualifiers: WmiDataId(1), Format("x")
New thread ID after the switch.
- NewThreadPriority
-
- Data type: sint8
- Access type: Read-only
- Qualifiers: WmiDataId(3)
Thread priority of the new thread.
- NewThreadWaitTime
-
- Data type: uint32
- Access type: Read-only
- Qualifiers: WmiDataId(11), Format("x")
Wait time for the new thread.
- OldThreadId
-
- Data type: uint32
- Access type: Read-only
- Qualifiers: WmiDataId(2), Format("x")
Previous thread ID.
- OldThreadPriority
-
- Data type: sint8
- Access type: Read-only
- Qualifiers: WmiDataId(4)
Thread priority of the previous thread.
- OldThreadState
-
- Data type: sint8
- Access type: Read-only
- Qualifiers: WmiDataId(9)
State of the previous thread. The following are the possible state values:
| State | Description |
|---|
| 0 | Initialized |
| 1 | Ready |
| 2 | Running |
| 3 | Standby |
| 4 | Terminated |
| 5 | Waiting |
| 6 | Transition |
| 7 | DeferredReady (added for Windows Server 2003) |
- OldThreadWaitIdealProcessor
-
- Data type: sint8
- Access type: Read-only
- Qualifiers: WmiDataId(10), Format("x")
Ideal wait time of the previous thread.
- OldThreadWaitMode
-
- Data type: sint8
- Access type: Read-only
- Qualifiers: WmiDataId(8)
Wait mode for the previous thread.
- OldThreadWaitReason
-
- Data type: sint8
- Access type: Read-only
- Qualifiers: WmiDataId(7)
Wait reason for the previous thread.
- PreviousCState
-
- Data type: uint8
- Access type: Read-only
- Qualifiers: WmiDataId(5)
The index of the C-state that was last used by the processor. A value of 0 represents the lightest idle state with higher values representing deeper C-states.
- Reserved
-
- Data type: uint32
- Access type: Read-only
- Qualifiers: WmiDataId(12)
Reserved.
- SpareByte
-
- Data type: sint8
- Access type: Read-only
- Qualifiers: WmiDataId(6)
Not used.
Remarks
These events produce a high volume of events.
Requirements
| Minimum supported client | Windows Vista |
|---|
| Minimum supported server | Windows Server 2008 |
|---|
See Also
- Thread
- Thread_V2
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Build date: 10/15/2009