void DumpShaderPipelineStats(EShaderPlatform Platform)
{
#if ALLOW_DEBUG_FILES
FDiagnosticTableViewer ShaderTypeViewer(*FDiagnosticTableViewer::GetUniqueTemporaryFilePath(TEXT("ShaderPipelineStats")));
int32 TotalNumPipelines = 0;
int32 TotalSize = 0;
float TotalSizePerType = 0;
// Write a row of headings for the table's columns.
ShaderTypeViewer.AddColumn(TEXT("Type"));
ShaderTypeViewer.AddColumn(TEXT("Shared/Unique"));
// Exclude compute
for (int32 Index = 0; Index < SF_NumFrequencies - 1; ++Index)
{
ShaderTypeViewer.AddColumn(GetShaderFrequencyString((EShaderFrequency)Index));
}
ShaderTypeViewer.CycleRow();
int32 TotalTypeCount = 0;
for (TLinkedList<FShaderPipelineType*>::TIterator It(FShaderPipelineType::GetTypeList()); It; It.Next())
{
const FShaderPipelineType* Type = *It;
// Write a row for the shader type.
ShaderTypeViewer.AddColumn(Type->GetName());
ShaderTypeViewer.AddColumn(Type->ShouldOptimizeUnusedOutputs() ? TEXT("U") : TEXT("S"));
for (int32 Index = 0; Index < SF_NumFrequencies - 1; ++Index)
{
const FShaderType* ShaderType = Type->GetShader((EShaderFrequency)Index);
ShaderTypeViewer.AddColumn(ShaderType ? ShaderType->GetName() : TEXT(""));
}
ShaderTypeViewer.CycleRow();
}
#endif
}
void DumpShaderStats( EShaderPlatform Platform, EShaderFrequency Frequency )
{
#if ALLOW_DEBUG_FILES
FDiagnosticTableViewer ShaderTypeViewer(*FDiagnosticTableViewer::GetUniqueTemporaryFilePath(TEXT("ShaderStats")));
// Iterate over all shader types and log stats.
int32 TotalShaderCount = 0;
int32 TotalTypeCount = 0;
int32 TotalInstructionCount = 0;
int32 TotalSize = 0;
float TotalSizePerType = 0;
// Write a row of headings for the table's columns.
ShaderTypeViewer.AddColumn(TEXT("Type"));
ShaderTypeViewer.AddColumn(TEXT("Instances"));
ShaderTypeViewer.AddColumn(TEXT("Average instructions"));
ShaderTypeViewer.AddColumn(TEXT("Size"));
ShaderTypeViewer.AddColumn(TEXT("AvgSizePerInstance"));
ShaderTypeViewer.CycleRow();
for( TLinkedList<FShaderType*>::TIterator It(FShaderType::GetTypeList()); It; It.Next() )
{
const FShaderType* Type = *It;
if(Type->GetNumShaders())
{
// Calculate the average instruction count and total size of instances of this shader type.
float AverageNumInstructions = 0.0f;
int32 NumInitializedInstructions = 0;
int32 Size = 0;
int32 NumShaders = 0;
for(TMap<FShaderId,FShader*>::TConstIterator ShaderIt(Type->ShaderIdMap);ShaderIt;++ShaderIt)
{
const FShader* Shader = ShaderIt.Value();
// Skip shaders that don't match frequency.
if( Shader->GetTarget().Frequency != Frequency && Frequency != SF_NumFrequencies )
{
continue;
}
// Skip shaders that don't match platform.
if( Shader->GetTarget().Platform != Platform && Platform != SP_NumPlatforms )
{
continue;
}
NumInitializedInstructions += Shader->GetNumInstructions();
Size += Shader->GetCode().Num();
NumShaders++;
}
AverageNumInstructions = (float)NumInitializedInstructions / (float)Type->GetNumShaders();
// Only add rows if there is a matching shader.
if( NumShaders )
{
// Write a row for the shader type.
ShaderTypeViewer.AddColumn(Type->GetName());
ShaderTypeViewer.AddColumn(TEXT("%u"),NumShaders);
ShaderTypeViewer.AddColumn(TEXT("%.1f"),AverageNumInstructions);
ShaderTypeViewer.AddColumn(TEXT("%u"),Size);
ShaderTypeViewer.AddColumn(TEXT("%.1f"),Size / (float)NumShaders);
ShaderTypeViewer.CycleRow();
TotalShaderCount += NumShaders;
TotalInstructionCount += NumInitializedInstructions;
TotalTypeCount++;
TotalSize += Size;
TotalSizePerType += Size / (float)NumShaders;
}
}
}
// Write a total row.
ShaderTypeViewer.AddColumn(TEXT("Total"));
ShaderTypeViewer.AddColumn(TEXT("%u"),TotalShaderCount);
ShaderTypeViewer.AddColumn(TEXT("%u"),TotalInstructionCount);
ShaderTypeViewer.AddColumn(TEXT("%u"),TotalSize);
ShaderTypeViewer.AddColumn(TEXT("0"));
ShaderTypeViewer.CycleRow();
// Write an average row.
ShaderTypeViewer.AddColumn(TEXT("Average"));
ShaderTypeViewer.AddColumn(TEXT("%.1f"),TotalShaderCount / (float)TotalTypeCount);
ShaderTypeViewer.AddColumn(TEXT("%.1f"),(float)TotalInstructionCount / TotalShaderCount);
ShaderTypeViewer.AddColumn(TEXT("%.1f"),TotalSize / (float)TotalShaderCount);
ShaderTypeViewer.AddColumn(TEXT("%.1f"),TotalSizePerType / TotalTypeCount);
ShaderTypeViewer.CycleRow();
#endif
}
