PO_FX_PERF_STATE - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// wdm.h
typedef struct _PO_FX_PERF_STATE {
ULONGLONG Value;
PVOID Context;
} PO_FX_PERF_STATE, *PPO_FX_PERF_STATE;
View the official Windows Driver Kit DDI referenceNo description available.
The PO_FX_PERF_STATE structure represents a performance state for a single component within a device.
ValueThe value of this performance state. The units are specified by the Unit member of the PO_FX_COMPONENT_PERF_SET that contains this performance state. For example, if Value is 100000000 and the Unit member of the PO_FX_COMPONENT_PERF_SET is PoFxPerfStateUnitFrequency, this performance state represents 100 MHz.
ContextA pointer to additional context for the performance state that cannot be presented by the Value member. This data can be shared between the driver and the platform extension plug-in (PEP).
Using the Context member can hinder the visualization of performance states in Windows Performance Analyzer.
The States member of the PO_FX_COMPONENT_PERF_SET structure contains an array of PO_FX_PERF_STATE elements.
Device Performance State Management
PoFxRegisterComponentPerfStates