1. Epic GamesDeveloper
  3. FPerformanceTrackingChart

FPerformanceTrackingChart

Chart for a single portion of gameplay (e.g., gameplay or in-game-shop or settings menu open) WARNING: If you add members here, you MUST also update [AccumulateWith()](API\Runtime\Engine\FPerformanceTrackingChart\AccumulateWith) as it accumulates each measure from another chart.

API > API/Runtime > API/Runtime/Engine

Inheritance Hierarchy

References

   
Module Engine
Header /Engine/Source/Runtime/Engine/Public/ChartCreation.h
Include #include "ChartCreation.h"

Syntax

class FPerformanceTrackingChart : public IPerformanceDataConsumer

Remarks

Chart for a single portion of gameplay (e.g., gameplay or in-game-shop or settings menu open) WARNING: If you add members here, you MUST also update AccumulateWith() as it accumulates each measure from another chart.

Variables

  Type Name Description
Public variable double AccumulatedChartTime Total accumulated raw (including idle) time spent with the chart registered
Public variable FHistogram AsyncPackageQueueHistogram Track size of the async loader package queue (I/O)
Public variable bool bIsChartingPaused  
Public variable FDateTime CaptureStartTime Start time of the capture
Public variable FString ChartLabel The mode being tracked by this chart.
Public variable FString DeviceProfileName WARNING: This value could technically change while data collection is ongoing.
Public variable FHistogram DynamicResHistogram Hitch time histogram (in seconds)
Public variable int FramesDisregarded Number of frames that were disregarded because the frame was too long.
Public variable FHistogram FrametimeHistogram Frame time histogram (in seconds)
Public variable FHistogram HitchTimeHistogram Hitch time histogram (in seconds)
Public variable int32 MaxDrawCalls Total number of draw calls made
Public variable int32 MaxDrawnPrimitives Total number of primitives drawn
Public variable double MaxFlushAsyncLoadingTime  
Public variable uint64 MaxPhysicalMemory  
Public variable int32 MaxPlayerTicks Total number of player ticks (note: it is up to the game to populate this field) WARNING: Legacy fields.
Public variable int32 MaxVehicleTicks Total number of vehicle ticks (note: it is up to the game to populate this field) WARNING: Legacy field.
Public variable uint64 MaxVirtualMemory  
Public variable uint64 MinAvailablePhysicalMemory  
Public variable int32 MinDrawCalls  
Public variable int32 MinDrawnPrimitives  
Public variable uint64 MinPhysicalMemory  
Public variable int32 MinPlayerTicks  
Public variable uint64 MinVirtualMemory  
Public variable uint32 NumFramesAtCriticalMemoryPressure Memory stats
Public variable uint32 NumFramesBound_GameThread Number of frames for each time of
Public variable uint32 NumFramesBound_GPU  
Public variable uint32 NumFramesBound_RenderThread  
Public variable uint32 NumFramesBound_RHIThread  
Public variable int StartBatteryLevel  
Public variable float StartTemperatureLevel  
Public variable int StopBatteryLevel  
Public variable float StopTemperatureLevel  
Public variable double TimeDisregarded Total time (sec) that were disregarded because the frame was too long.
Public variable int32 TotalDrawCalls  
Public variable int64 TotalDrawnPrimitives  
Public variable int32 TotalFlushAsyncLoadingCalls  
Public variable double TotalFlushAsyncLoadingTime Total time spent flushing async loading (in seconds), and call count
Public variable double TotalFramesBoundTime_GameThread Time spent bound on each kind of thing (in seconds)
Public variable double TotalFramesBoundTime_GPU  
Public variable double TotalFramesBoundTime_RenderThread  
Public variable double TotalFramesBoundTime_RHIThread  
Public variable double TotalFrameTime_GameThread Total time spent on each thread (in seconds)
Public variable double TotalFrameTime_GPU  
Public variable double TotalFrameTime_RenderThread  
Public variable double TotalFrameTime_RHIThread  
Public variable int32 TotalGameThreadBoundHitchCount Total number of hitches bound by each kind of thing
Public variable int32 TotalGPUBoundHitchCount  
Public variable uint64 TotalPhysicalMemoryUsed  
Public variable int32 TotalPlayerTicks  
Public variable int32 TotalRenderThreadBoundHitchCount  
Public variable int32 TotalRHIThreadBoundHitchCount  
Public variable uint32 TotalSyncLoadCount Total number of sync loads
Public variable int32 TotalVehicleTicks  
Public variable uint64 TotalVirtualMemoryUsed  

Constructors

  Type Name Description
Public function    
Public function  

FPerformanceTrackingChart ( const FDateTime& InStartTime,
const FString& InChartLabel
)

  

Destructors

  Type Name Description
Public function Virtual    

Functions

  Type Name Description
Public function void  
Public function void

ChangeLabel ( const FString& NewLabel
)

  
Public function void

DumpChartsToOutputLog ( double WallClockElapsed,
const TArray< const FPerformanceTrackingChart* >& Charts,
const FString& InMapName
)

 Dumps the FPS chart information to the log.
Public function Const void

DumpChartToAnalyticsParams ( const FString& InMapName,
TArray< struct FAnalyticsEventAttribute >& InParamArray,
bool bIncludeClientHWInfo,
bool bIncludeHistograms
)

 Dumps the FPS chart information to an analytic event param array.
Public function void

DumpFPSChart ( const FString& InMapName
)

  
Public function Const double  
Public function Const double  
Public function Const double  
Public function Const int64  
Public function Const int64  
Public function Const double

GetPercentFramesIOBusy ( int32 StartingBin
)

  
Public function Const double

GetPercentHitchTime ( bool bSubtractHitchThreshold
)

  
Public function Const double  
Public function Const double

GetTotalHitchFrameTime ( bool bSubtractHitchThreshold
)

 Sum of all recorded hitch lengths (in seconds)
Public function Const double  
Public function void  
Public function void

Reset ( const FDateTime& InStartTime
)

 Discard all accumulated data.
Public function void  

Overridden from IPerformanceDataConsumer

  Type Name Description
Public function Virtual void

ProcessFrame ( const FFrameData& FrameData
)

  
Public function Virtual void  
Public function Virtual void  

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page