151 lines
4.4 KiB
C++
151 lines
4.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "PlatformEventTraceAnalysis.h"
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#include "HAL/LowLevelMemTracker.h"
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#include "Model/ContextSwitchesPrivate.h"
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#include "Model/StackSamplesPrivate.h"
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#include "TraceServices/Model/AnalysisSession.h"
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namespace TraceServices
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{
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FPlatformEventTraceAnalyzer::FPlatformEventTraceAnalyzer(IAnalysisSession& InSession,
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FContextSwitchesProvider& InContextSwitchesProvider,
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FStackSamplesProvider& InStackSamplesProvider)
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: Session(InSession)
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, ContextSwitchesProvider(InContextSwitchesProvider)
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, StackSamplesProvider(InStackSamplesProvider)
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{
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}
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void FPlatformEventTraceAnalyzer::OnAnalysisBegin(const FOnAnalysisContext& Context)
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{
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auto& Builder = Context.InterfaceBuilder;
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Builder.RouteEvent(RouteId_Settings, "PlatformEvent", "Settings");
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Builder.RouteEvent(RouteId_ContextSwitch, "PlatformEvent", "ContextSwitch");
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Builder.RouteEvent(RouteId_StackSample, "PlatformEvent", "StackSample");
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Builder.RouteEvent(RouteId_ThreadName, "PlatformEvent", "ThreadName");
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}
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void FPlatformEventTraceAnalyzer::OnAnalysisEnd()
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{
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double MaxEndTime = 0.0;
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{
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TraceServices::FProviderEditScopeLock ScopedLock(StackSamplesProvider);
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MaxEndTime = StackSamplesProvider.OnAnalysisEnd();
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}
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if (MaxEndTime > 0.0)
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{
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FAnalysisSessionEditScope _(Session);
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Session.UpdateDurationSeconds(MaxEndTime);
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}
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int32 TryCount = 10;
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while (TryCount > 0)
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{
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if (!StackSamplesProvider.UpdatePendingTimers())
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{
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break;
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}
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FPlatformProcess::Sleep(1.0f);
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--TryCount;
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}
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}
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bool FPlatformEventTraceAnalyzer::OnEvent(uint16 RouteId, EStyle Style, const FOnEventContext& Context)
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{
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LLM_SCOPE_BYNAME(TEXT("Insights/FPlatformEventTraceAnalyzer"));
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switch (RouteId)
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{
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case RouteId_Settings:
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{
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const auto& EventData = Context.EventData;
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uint32 SamplingIntervalUsec = EventData.GetValue<uint32>("SamplingInterval");
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{
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TraceServices::FProviderEditScopeLock ScopedLock(StackSamplesProvider);
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StackSamplesProvider.SetSamplingInterval(SamplingIntervalUsec);
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}
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break;
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}
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case RouteId_ContextSwitch:
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{
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const auto& EventData = Context.EventData;
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double Start = Context.EventTime.AsSeconds(EventData.GetValue<uint64>("StartTime"));
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double End = Context.EventTime.AsSeconds(EventData.GetValue<uint64>("EndTime"));
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uint32 ThreadId = EventData.GetValue<uint32>("ThreadId");
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uint32 CoreNumber = EventData.GetValue<uint8>("CoreNumber");
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{
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TraceServices::FProviderEditScopeLock ScopedLock(ContextSwitchesProvider);
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ContextSwitchesProvider.AddTimingEvent(ThreadId, Start, End, CoreNumber);
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}
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{
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FAnalysisSessionEditScope _(Session);
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Session.UpdateDurationSeconds(End);
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}
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break;
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}
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case RouteId_StackSample:
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{
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const auto& EventData = Context.EventData;
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double Time = Context.EventTime.AsSeconds(EventData.GetValue<uint64>("Time"));
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uint32 ThreadId = EventData.GetValue<uint32>("ThreadId");
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const TArrayReader<uint64>& Addresses = EventData.GetArray<uint64>("Addresses");
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{
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TraceServices::FProviderEditScopeLock ScopedLock(StackSamplesProvider);
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StackSamplesProvider.AddStackSample(ThreadId, Time, Addresses.Num(), Addresses.GetData());
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}
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StackSamplesProvider.UpdatePendingTimers();
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{
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FAnalysisSessionEditScope _(Session);
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Session.UpdateDurationSeconds(Time);
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}
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break;
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}
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case RouteId_ThreadName:
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{
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const auto& EventData = Context.EventData;
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uint32 ThreadId = EventData.GetValue<uint32>("ThreadId");
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uint32 ProcessId = EventData.GetValue<uint32>("ProcessId");
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FStringView Name;
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if (EventData.GetString("Name", Name))
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{
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{
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TraceServices::FProviderEditScopeLock ScopedLock(ContextSwitchesProvider);
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ContextSwitchesProvider.AddThreadName(ThreadId, ProcessId, Name);
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}
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{
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TraceServices::FProviderEditScopeLock ScopedLock(StackSamplesProvider);
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StackSamplesProvider.AddThreadName(ThreadId, ProcessId, Name);
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}
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}
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break;
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}
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} // switch (RouteId)
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return true;
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}
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void FPlatformEventTraceAnalyzer::OnThreadInfo(const FThreadInfo& ThreadInfo)
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{
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LLM_SCOPE_BYNAME(TEXT("Insights/FPlatformEventTraceAnalyzer"));
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{
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TraceServices::FProviderEditScopeLock ScopedLock(ContextSwitchesProvider);
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ContextSwitchesProvider.AddThreadInfo(ThreadInfo.GetId(), ThreadInfo.GetSystemId());
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}
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{
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//TraceServices::FProviderEditScopeLock ScopedLock(StackSamplesProvider);
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//StackSamplesProvider.AddThreadInfo(ThreadInfo.GetId(), ThreadInfo.GetSystemId());
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}
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}
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} // namespace TraceServices
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