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Add information about the context switch when hovering the thread in the cpu data timeline

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This commit is contained in:
Clément Grégoire
2025-04-09 16:56:20 +02:00
parent d4edd107dc
commit 2783e6e64b
1 changed files with 72 additions and 9 deletions
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81
profiler/src/profiler/TracyView_CpuData.cpp
View File

@@ -216,15 +216,17 @@ bool View::DrawCpuData( const TimelineContext& ctx, const std::vector<CpuUsageDr
const char* txt;
auto label = GetThreadContextData( thread, local, untracked, txt );
uint32_t color;
if( m_vd.dynamicColors != 0 )
{
color = local ? GetThreadColor( thread, 0 ) : ( untracked ? 0xFF663333 : 0xFF444444 );
}
else
{
color = local ? 0xFF334488 : ( untracked ? 0xFF663333 : 0xFF444444 );
}
auto getDisplayThreadColor = [this]( uint64_t thread, bool local, bool untracked ) {
if( m_vd.dynamicColors != 0 )
{
return local ? GetThreadColor( thread, 0 ) : ( untracked ? 0xFF663333 : 0xFF444444 );
}
else
{
return local ? 0xFF334488 : ( untracked ? 0xFF663333 : 0xFF444444 );
}
};
uint32_t color = getDisplayThreadColor( thread, local, untracked );
draw->AddRectFilled( wpos + ImVec2( px0, offset ), wpos + ImVec2( px1, offset + sty ), color );
if( m_drawThreadHighlight == thread )
@@ -330,6 +332,67 @@ bool View::DrawCpuData( const TimelineContext& ctx, const std::vector<CpuUsageDr
TextFocused( "Start time:", TimeToStringExact( ev.Start() ) );
TextFocused( "End time:", TimeToStringExact( end ) );
TextFocused( "Activity time:", TimeToString( end - ev.Start() ) );
// Display data about the switch in
auto threadCtxSwitches = m_worker.GetContextSwitchData( thread );
if( threadCtxSwitches )
{
auto& v = threadCtxSwitches->v;
auto it = std::lower_bound( v.begin(), v.end(), ev.Start(), [](const auto& l, const auto& r) { return l.End() < r; } );
// We should have the data, or something went wrong.
assert( it != v.end() && it->Start() == ev.Start() );
// Do we have information about the previous CSwitch?
if( it != v.begin() )
{
auto& prev = *( it - 1 );
ImGui::Separator();
TextFocused( "Wait reason:", DecodeContextSwitchReasonCode( prev.Reason() ) );
ImGui::SameLine();
ImGui::PushFont( m_smallFont );
ImGui::AlignTextToFramePadding();
TextDisabledUnformatted( DecodeContextSwitchReason( prev.Reason() ) );
ImGui::PopFont();
TextFocused( "Wait state:", DecodeContextSwitchStateCode( prev.State() ) );
TextFocused( "Waiting time:", TimeToString( it->WakeupVal() - prev.End() ) );
}
// Do we have information about the readying thread?
if( it->Start() - it->WakeupVal() )
{
ImGui::Separator();
TextFocused( "WakeUp delay:", TimeToString( it->Start() - it->WakeupVal() ) );
assert( it->WakeupCpu() < cpuCnt );
const auto& wakeUpCpuCSwitches = cpuData[it->WakeupCpu()].cs;
auto wakeupit = std::lower_bound( wakeUpCpuCSwitches.begin(), wakeUpCpuCSwitches.end(), it->WakeupVal(), []( const auto& l, const auto& r ) { return l.End() < r; } );
if( wakeupit != wakeUpCpuCSwitches.end()
&& wakeupit->Start() < it->WakeupVal()
&& it->WakeupVal() < wakeupit->End() )
{
TextDisabledUnformatted( "Woken up by:" );
ImGui::SameLine();
const auto wakeupThread = m_worker.DecompressThreadExternal( wakeupit->Thread() );
bool wakeupThreadLocal, wakeupThreadUntracked;
const char* wakeUpThreadProgram;
auto wakeuplabel = GetThreadContextData( wakeupThread, wakeupThreadLocal, wakeupThreadUntracked, wakeUpThreadProgram );
uint32_t wakeupThreadColor = getDisplayThreadColor( wakeupThread, wakeupThreadLocal, wakeupThreadUntracked );
TextColoredUnformatted( HighlightColor<75>( wakeupThreadColor ), wakeuplabel );
ImGui::SameLine();
ImGui::TextDisabled( "(%s)", RealToString( wakeupThread ) );
}
else
{
TextDisabledUnformatted( "Woken up by Kernel" );
}
}
}
ImGui::EndTooltip();
ImGui::PushFont( m_smallFont );