void FStatsMallocProfilerProxy::TrackAlloc( void* Ptr, int64 Size, int32 SequenceTag )
{
if( bEnabled )
{
FThreadStats* ThreadStats = FThreadStats::GetThreadStats();
#ifdef DEBUG_MALLOC_PROXY
if (GThreadStatsToDumpMemory == ThreadStats && ThreadStats->MemoryMessageScope == 0)
{
ThreadStats->MemoryMessageScope++;
UE_LOG( LogStats, Warning, TEXT( "TrackAlloc, %llu, %lli, %i, %i" ), (uint64)(UPTRINT)Ptr, Size, SequenceTag, ThreadStats->MemoryMessageScope );
ThreadStats->MemoryMessageScope--;
}
#endif // DEBUG_MALLOC_PROXY
if (ThreadStats->MemoryMessageScope == 0)
{
#if UE_BUILD_DEBUG
if (ThreadStats->Packet.StatMessages.Num() > 0 && ThreadStats->Packet.StatMessages.Num() % 32767 == 0)
{
ThreadStats->MemoryMessageScope++;
const double InvMB = 1.0f / 1024.0f / 1024.0f;
UE_LOG( LogStats, Verbose, TEXT( "ThreadID: %i, Current: %.1f" ), FPlatformTLS::GetCurrentThreadId(), InvMB*(int64)ThreadStats->Packet.StatMessages.Num()*sizeof( FStatMessage ) );
ThreadStats->MemoryMessageScope--;
}
#endif // UE_BUILD_DEBUG
// 48 bytes per allocation.
ThreadStats->AddMemoryMessage( GET_STATFNAME( STAT_Memory_AllocPtr ), (uint64)(UPTRINT)Ptr | (uint64)EMemoryOperation::Alloc );
ThreadStats->AddMemoryMessage( GET_STATFNAME( STAT_Memory_AllocSize ), Size );
ThreadStats->AddMemoryMessage( GET_STATFNAME( STAT_Memory_OperationSequenceTag ), (int64)SequenceTag );
AllocPtrCalls.Increment();
}
}
}
void FStatsMallocProfilerProxy::TrackFree( void* Ptr, int32 SequenceTag )
{
if( bEnabled )
{
if( Ptr != nullptr )
{
FThreadStats* ThreadStats = FThreadStats::GetThreadStats();
#ifdef DEBUG_MALLOC_PROXY
if( GThreadStatsToDumpMemory == ThreadStats && ThreadStats->MemoryMessageScope == 0 )
{
ThreadStats->MemoryMessageScope++;
UE_LOG(LogStats, Warning, TEXT("TrackFree, %llu, 0, %i, %i"), (uint64)(UPTRINT)Ptr, SequenceTag, ThreadStats->MemoryMessageScope);
ThreadStats->MemoryMessageScope--;
}
#endif // DEBUG_MALLOC_PROXY
if( ThreadStats->MemoryMessageScope == 0 )
{
// 32 bytes per free.
ThreadStats->AddMemoryMessage( GET_STATFNAME(STAT_Memory_FreePtr), (uint64)(UPTRINT)Ptr | (uint64)EMemoryOperation::Free ); // 16 bytes total
ThreadStats->AddMemoryMessage( GET_STATFNAME(STAT_Memory_OperationSequenceTag), (int64)SequenceTag );
FreePtrCalls.Increment();
}
}
}
}
void FStatsMallocProfilerProxy::TrackRealloc( void* OldPtr, void* NewPtr, int64 NewSize, int32 SequenceTag )
{
if (bEnabled)
{
if (OldPtr != nullptr && NewSize > 0)
{
FThreadStats* ThreadStats = FThreadStats::GetThreadStats();
if (ThreadStats->MemoryMessageScope == 0)
{
// 64 bytes per reallocation. 80 for Free/Alloc
ThreadStats->AddMemoryMessage( GET_STATFNAME( STAT_Memory_FreePtr ), (uint64)(UPTRINT)OldPtr | (uint64)EMemoryOperation::Realloc );
ThreadStats->AddMemoryMessage( GET_STATFNAME( STAT_Memory_AllocPtr ), (uint64)(UPTRINT)NewPtr | (uint64)EMemoryOperation::Realloc );
ThreadStats->AddMemoryMessage( GET_STATFNAME( STAT_Memory_AllocSize ), NewSize );
ThreadStats->AddMemoryMessage( GET_STATFNAME( STAT_Memory_OperationSequenceTag ), (int64)SequenceTag );
ReallocPtrCalls.Increment();
}
}
else if (OldPtr == nullptr)
{
#if !PLATFORM_XBOXONE
TrackAlloc( NewPtr, NewSize, SequenceTag );
#endif
}
else
{
TrackFree( OldPtr, SequenceTag );
}
}
}
void FMalloc::InitializeStatsMetadata()
{
// Initialize stats metadata here instead of UpdateStats.
// Mostly to avoid dead-lock when stats malloc profiler is enabled.
GET_STATFNAME(STAT_MallocCalls);
GET_STATFNAME(STAT_ReallocCalls);
GET_STATFNAME(STAT_FreeCalls);
GET_STATFNAME(STAT_TotalAllocatorCalls);
}
void FStatsMallocProfilerProxy::InitializeStatsMetadata()
{
UsedMalloc->InitializeStatsMetadata();
// Initialize the memory messages metadata.
// Malloc profiler proxy needs to be disabled otherwise it will hit infinite recursion in DoSetup.
// Needs to be changed if we want to support boot time memory profiling.
const FName NameAllocPtr = GET_STATFNAME(STAT_Memory_AllocPtr);
const FName NameReallocPtr = GET_STATFNAME(STAT_Memory_ReallocPtr);
const FName NameFreePtr = GET_STATFNAME(STAT_Memory_FreePtr);
const FName NameAllocSize = GET_STATFNAME(STAT_Memory_AllocSize);
const FName NameOperationSequenceTag = GET_STATFNAME(STAT_Memory_OperationSequenceTag);
GET_STATFNAME(STAT_Memory_AllocPtr_Calls);
GET_STATFNAME(STAT_Memory_ReallocPtr_Calls);
GET_STATFNAME(STAT_Memory_FreePtr_Calls);
GET_STATFNAME(STAT_Memory_AllocPtr_Mem);
GET_STATFNAME(STAT_Memory_FreePtr_Mem);
}
