Microsoft-Windows-Kernel-Interrupt-Steering

Event	Title	Channel	Sample	Rule
1	InterruptSteeringMaskRundown	Operational	N	N
2	InterruptSteeringMaskChange	Operational	N	N
3	InterruptSteeringStateRundown	Operational	N	N
4	InterruptSteeringStateConnect	Operational	N	N
5	InterruptSteeringStateDisconnect	Operational	N	N
6	InterruptSteeringStateRetarget	Operational	N	N
7	InterruptSteeringProcRundown	Operational	N	N
8	InterruptSteeringProcChange	Operational	N	N

Event ID 1: InterruptSteeringMaskRundown

Channel: Operational
Task: InterruptSteeringMaskRundown

Fields #

Name	Description
`LoadPercent` UInt32	Idle power management features on processor
`GsivCount` UInt32
`MaskCount` UInt32
`GroupCount` UInt16
`Mask` Pointer

Event ID 2: InterruptSteeringMaskChange

Channel: Operational
Task: InterruptSteeringMaskChange

Fields #

Name	Description
`LoadPercent` UInt32	Performance power management features on processor
`GsivCount` UInt32
`MaskCount` UInt32
`GroupCount` UInt16
`Mask` Pointer

Event ID 3: InterruptSteeringStateRundown

Channel: Operational
Task: InterruptSteeringStateRundown

Fields #

Name	Description
`Gsiv` UInt32	Throttle power management features on processor
`Group` UInt16
`NewTarget` Pointer
`OldTarget` Pointer
`Vector` UInt32
`ServiceRoutine` Pointer
`IsrLoad` UInt64
`DpcLoad` UInt64

Event ID 4: InterruptSteeringStateConnect

Channel: Operational
Task: InterruptSteeringStateConnect

Fields #

Name	Description
`Gsiv` UInt32	Processor
`Group` UInt16
`NewTarget` Pointer
`OldTarget` Pointer
`Vector` UInt32
`ServiceRoutine` Pointer
`IsrLoad` UInt64
`DpcLoad` UInt64

Event ID 5: InterruptSteeringStateDisconnect

Channel: Operational
Task: InterruptSteeringStateDisconnect

Fields #

Name	Description
`Gsiv` UInt32
`Group` UInt16
`NewTarget` Pointer
`OldTarget` Pointer
`Vector` UInt32
`ServiceRoutine` Pointer
`IsrLoad` UInt64
`DpcLoad` UInt64

Event ID 6: InterruptSteeringStateRetarget

Channel: Operational
Task: InterruptSteeringStateRetarget

Fields #

Name	Description
`Gsiv` UInt32
`Group` UInt16
`NewTarget` Pointer
`OldTarget` Pointer
`Vector` UInt32
`ServiceRoutine` Pointer
`IsrLoad` UInt64
`DpcLoad` UInt64

Event ID 7: InterruptSteeringProcRundown

Channel: Operational
Task: InterruptSteeringProcRundown

Fields #

Name	Description
`ProcIndex` UInt32	The speed of processor
`DeviceInterrupts` UInt32	is being limited by system firmware. The processor has been in this reduced performance state for

Event ID 8: InterruptSteeringProcChange

Channel: Operational
Task: InterruptSteeringProcChange

Fields #

Name	Description
`ProcIndex` UInt32
`DeviceInterrupts` UInt32

Provenance

ETW provider GUID 951b41ea-c830-44dc-a671-e2c9958809b8

Defined in microsoft-windows-kernel-processor-power-events.dll, which carries the event manifest.

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.1, captured 2026-06-02 — Manifest XML pack, 1.9 MB
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1, captured 2026-06-02 — Manifest XML pack, 2.0 MB