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Support hw sample times on server.

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Bartosz Taudul 2021-06-04 13:38:45 +02:00
parent 2765be92fb
commit a1acea0c50
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GPG Key ID: B7FE2008B7575DF3
3 changed files with 140 additions and 54 deletions
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35
server/TracyEvent.hpp
View File

@ -158,6 +158,8 @@ private:
uint8_t m_val[6];
};
struct Int48Sort { bool operator()( const Int48& lhs, const Int48& rhs ) { return lhs.Val() < rhs.Val(); }; };
struct SourceLocationBase
{
@ -253,12 +255,33 @@ enum { SampleDataRangeSize = sizeof( SampleDataRange ) };
struct HwSampleData
{
uint32_t cycles;
uint32_t retired;
uint32_t cacheRef;
uint32_t cacheMiss;
uint32_t branchRetired;
uint32_t branchMiss;
SortedVector<Int48, Int48Sort> cycles;
SortedVector<Int48, Int48Sort> retired;
SortedVector<Int48, Int48Sort> cacheRef;
SortedVector<Int48, Int48Sort> cacheMiss;
SortedVector<Int48, Int48Sort> branchRetired;
SortedVector<Int48, Int48Sort> branchMiss;
bool is_sorted() const
{
return
cycles.is_sorted() &&
retired.is_sorted() &&
cacheRef.is_sorted() &&
cacheMiss.is_sorted() &&
branchRetired.is_sorted() &&
branchMiss.is_sorted();
}
void sort()
{
if( !cycles.is_sorted() ) cycles.sort();
if( !retired.is_sorted() ) retired.sort();
if( !cacheRef.is_sorted() ) cacheRef.sort();
if( !cacheMiss.is_sorted() ) cacheMiss.sort();
if( !branchRetired.is_sorted() ) branchRetired.sort();
if( !branchMiss.is_sorted() ) branchMiss.sort();
}
};
enum { HwSampleDataSize = sizeof( HwSampleData ) };

83
server/TracySourceView.cpp
View File

@ -2633,9 +2633,9 @@ void SourceView::RenderLine( const Tokenizer::Line& line, int lineNum, const Add
DrawLine( draw, dpos + ImVec2( 0, ty+2 ), dpos + ImVec2( w, ty+2 ), 0x08FFFFFF );
}
static void PrintHwSampleTooltip( const HwSampleData& hw, bool hideFirstSeparator )
static void PrintHwSampleTooltip( size_t cycles, size_t retired, size_t cacheRef, size_t cacheMiss, size_t branchRetired, size_t branchMiss, bool hideFirstSeparator )
{
if( hw.cycles || hw.retired )
if( cycles || retired )
{
if( hideFirstSeparator )
{
@ -2645,17 +2645,17 @@ static void PrintHwSampleTooltip( const HwSampleData& hw, bool hideFirstSeparato
{
ImGui::Separator();
}
if( hw.cycles && hw.retired )
if( cycles && retired )
{
char buf[32];
auto end = PrintFloat( buf, buf+32, float( hw.retired ) / hw.cycles, 2 );
auto end = PrintFloat( buf, buf+32, float( retired ) / cycles, 2 );
*end = '\0';
TextFocused( "IPC:", buf );
}
if( hw.cycles ) TextFocused( "Cycles:", RealToString( hw.cycles ) );
if( hw.retired ) TextFocused( "Retirements:", RealToString( hw.retired ) );
if( cycles ) TextFocused( "Cycles:", RealToString( cycles ) );
if( retired ) TextFocused( "Retirements:", RealToString( retired ) );
}
if( hw.cacheRef || hw.cacheMiss )
if( cacheRef || cacheMiss )
{
if( hideFirstSeparator )
{
@ -2665,17 +2665,17 @@ static void PrintHwSampleTooltip( const HwSampleData& hw, bool hideFirstSeparato
{
ImGui::Separator();
}
if( hw.cacheRef )
if( cacheRef )
{
char buf[32];
auto end = PrintFloat( buf, buf+32, float( 100 * hw.cacheMiss ) / hw.cacheRef, 2 );
auto end = PrintFloat( buf, buf+32, float( 100 * cacheMiss ) / cacheRef, 2 );
memcpy( end, "%", 2 );
TextFocused( "Cache miss rate:", buf );
TextFocused( "Cache references:", RealToString( hw.cacheRef ) );
TextFocused( "Cache references:", RealToString( cacheRef ) );
}
if( hw.cacheMiss ) TextFocused( "Cache misses:", RealToString( hw.cacheMiss ) );
if( cacheMiss ) TextFocused( "Cache misses:", RealToString( cacheMiss ) );
}
if( hw.branchRetired || hw.branchMiss )
if( branchRetired || branchMiss )
{
if( hideFirstSeparator )
{
@ -2685,15 +2685,15 @@ static void PrintHwSampleTooltip( const HwSampleData& hw, bool hideFirstSeparato
{
ImGui::Separator();
}
if( hw.branchRetired )
if( branchRetired )
{
char buf[32];
auto end = PrintFloat( buf, buf+32, float( 100 * hw.branchMiss ) / hw.branchRetired, 2 );
auto end = PrintFloat( buf, buf+32, float( 100 * branchMiss ) / branchRetired, 2 );
memcpy( end, "%", 2 );
TextFocused( "Branch mispredictions rate:", buf );
TextFocused( "Retired branches:", RealToString( hw.branchRetired ) );
TextFocused( "Retired branches:", RealToString( branchRetired ) );
}
if( hw.branchMiss ) TextFocused( "Branch mispredictions:", RealToString( hw.branchMiss ) );
if( branchMiss ) TextFocused( "Branch mispredictions:", RealToString( branchMiss ) );
}
}
@ -2719,6 +2719,18 @@ void SourceView::RenderAsmLine( AsmLine& line, const AddrStat& ipcnt, const Addr
const auto asmIdx = &line - m_asm.data();
const auto hw = worker.GetHwSampleData( line.addr );
size_t cycles = 0, retired = 0, cacheRef = 0, cacheMiss = 0, branchRetired = 0, branchMiss = 0;
if( hw )
{
cycles = hw->cycles.size();
retired = hw->retired.size();
cacheRef = hw->cacheRef.size();
cacheMiss = hw->cacheMiss.size();
branchRetired = hw->branchRetired.size();
branchMiss = hw->branchMiss.size();
}
const auto ts = ImGui::CalcTextSize( " " );
if( iptotal.local + iptotal.ext != 0 )
{
@ -2732,7 +2744,7 @@ void SourceView::RenderAsmLine( AsmLine& line, const AddrStat& ipcnt, const Addr
{
if( m_font ) ImGui::PopFont();
ImGui::BeginTooltip();
PrintHwSampleTooltip( *hw, true );
PrintHwSampleTooltip( cycles, retired, cacheRef, cacheMiss, branchRetired, branchMiss, true );
ImGui::EndTooltip();
if( m_font ) ImGui::PushFont( m_font );
}
@ -2788,7 +2800,7 @@ void SourceView::RenderAsmLine( AsmLine& line, const AddrStat& ipcnt, const Addr
}
const auto hw = worker.GetHwSampleData( line.addr );
if( hw ) PrintHwSampleTooltip( *hw, false );
if( hw ) PrintHwSampleTooltip( cycles, retired, cacheRef, cacheMiss, branchRetired, branchMiss, false );
const auto& stats = *worker.GetSymbolStats( symAddrParents );
if( !stats.parents.empty() )
@ -2884,13 +2896,12 @@ void SourceView::RenderAsmLine( AsmLine& line, const AddrStat& ipcnt, const Addr
const bool showHwSamples = m_hwSamples && worker.GetHwSampleCountAddress() != 0;
if( showHwSamples )
{
auto hw = worker.GetHwSampleData( line.addr );
if( hw )
{
if( hw->cycles != 0 )
if( cycles )
{
const bool unreliable = hw->cycles < 10 || hw->retired < 10;
const float ipc = float( hw->retired ) / hw->cycles;
const bool unreliable = cycles < 10 || retired < 10;
const float ipc = float( retired ) / cycles;
uint32_t col = unreliable ? 0x44FFFFFF : GetGoodnessColor( ipc * 0.25f );
if( ipc >= 10 )
{
@ -2913,8 +2924,8 @@ void SourceView::RenderAsmLine( AsmLine& line, const AddrStat& ipcnt, const Addr
ImGui::SameLine();
TextDisabledUnformatted( "Higher is better" );
ImGui::Separator();
TextFocused( "Cycles:", RealToString( hw->cycles ) );
TextFocused( "Retirements:", RealToString( hw->retired ) );
TextFocused( "Cycles:", RealToString( cycles ) );
TextFocused( "Retirements:", RealToString( retired ) );
if( unreliable ) TextColoredUnformatted( 0xFF4444FF, "Not enough samples for reliable data!" );
ImGui::EndTooltip();
if( m_font ) ImGui::PushFont( m_font );
@ -2925,12 +2936,12 @@ void SourceView::RenderAsmLine( AsmLine& line, const AddrStat& ipcnt, const Addr
ImGui::ItemSize( ImVec2( 7 * ts.x, ts.y ) );
}
ImGui::SameLine( 0, 0 );
if( hw->branchRetired != 0 )
if( branchRetired )
{
const bool unreliable = hw->branchRetired < 10;
const float rate = float( hw->branchMiss ) / hw->branchRetired;
const bool unreliable = branchRetired < 10;
const float rate = float( branchMiss ) / branchRetired;
uint32_t col = unreliable ? 0x44FFFFFF : GetGoodnessColor( 1.f - rate * 3.f );
if( hw->branchMiss == 0 )
if( branchMiss == 0 )
{
TextColoredUnformatted( col, " 0% " );
}
@ -2963,8 +2974,8 @@ void SourceView::RenderAsmLine( AsmLine& line, const AddrStat& ipcnt, const Addr
ImGui::SameLine();
TextDisabledUnformatted( "Lower is better" );
ImGui::Separator();
TextFocused( "Retired branches:", RealToString( hw->branchRetired ) );
TextFocused( "Branch mispredictions:", RealToString( hw->branchMiss ) );
TextFocused( "Retired branches:", RealToString( branchRetired ) );
TextFocused( "Branch mispredictions:", RealToString( branchMiss ) );
if( unreliable ) TextColoredUnformatted( 0xFF4444FF, "Not enough samples for reliable data!" );
ImGui::EndTooltip();
if( m_font ) ImGui::PushFont( m_font );
@ -2975,12 +2986,12 @@ void SourceView::RenderAsmLine( AsmLine& line, const AddrStat& ipcnt, const Addr
ImGui::ItemSize( ImVec2( 7 * ts.x, ts.y ) );
}
ImGui::SameLine( 0, 0 );
if( hw->cacheRef != 0 )
if( cacheRef )
{
const bool unreliable = hw->cacheRef < 10;
const float rate = float( hw->cacheMiss ) / hw->cacheRef;
const bool unreliable = cacheRef < 10;
const float rate = float( cacheMiss ) / cacheRef;
uint32_t col = unreliable ? 0x44FFFFFF : GetGoodnessColor( 1.f - rate * 3.f );
if( hw->cacheMiss == 0 )
if( cacheMiss == 0 )
{
TextColoredUnformatted( col, " 0%" );
}
@ -3013,8 +3024,8 @@ void SourceView::RenderAsmLine( AsmLine& line, const AddrStat& ipcnt, const Addr
ImGui::SameLine();
TextDisabledUnformatted( "Lower is better" );
ImGui::Separator();
TextFocused( "Cache references:", RealToString( hw->cacheRef ) );
TextFocused( "Cache misses:", RealToString( hw->cacheMiss ) );
TextFocused( "Cache references:", RealToString( cacheRef ) );
TextFocused( "Cache misses:", RealToString( cacheMiss ) );
if( unreliable ) TextColoredUnformatted( 0xFF4444FF, "Not enough samples for reliable data!" );
ImGui::EndTooltip();
if( m_font ) ImGui::PushFont( m_font );

76
server/TracyWorker.cpp
View File

@ -237,6 +237,23 @@ static tracy_force_inline void UpdateLockRange( LockMap& lockmap, const LockEven
if( range.end < lt ) range.end = lt;
}
template<int U>
static void ReadHwSampleVec( FileRead& f, SortedVector<Int48, Int48Sort>& vec, Slab<U>& slab )
{
uint64_t sz;
f.Read( sz );
if( sz != 0 )
{
int64_t refTime = 0;
vec.reserve_exact( sz, slab );
for( uint64_t i=0; i<sz; i++ )
{
vec[i] = ReadTimeOffset( f, refTime );
}
}
}
LoadProgress Worker::s_loadProgress;
Worker::Worker( const char* addr, uint16_t port )
@ -1707,9 +1724,14 @@ Worker::Worker( FileRead& f, EventType::Type eventMask, bool bgTasks )
for( uint64_t i=0; i<sz; i++ )
{
uint64_t addr;
HwSampleData data;
f.Read2( addr, data );
m_data.hwSamples.emplace( addr, data );
f.Read( addr );
auto& data = m_data.hwSamples.emplace( addr, HwSampleData {} ).first->second;
ReadHwSampleVec( f, data.cycles, m_slab );
ReadHwSampleVec( f, data.retired, m_slab );
ReadHwSampleVec( f, data.cacheRef, m_slab );
ReadHwSampleVec( f, data.cacheMiss, m_slab );
ReadHwSampleVec( f, data.branchRetired, m_slab );
ReadHwSampleVec( f, data.branchMiss, m_slab );
}
}
@ -6323,44 +6345,50 @@ void Worker::ProcessTidToPid( const QueueTidToPid& ev )
void Worker::ProcessHwSampleCpuCycle( const QueueHwSample& ev )
{
const auto time = TscTime( ev.time - m_data.baseTime );
auto it = m_data.hwSamples.find( ev.ip );
if( it == m_data.hwSamples.end() ) it = m_data.hwSamples.emplace( ev.ip, HwSampleData {} ).first;
it->second.cycles++;
it->second.cycles.push_back( time );
}
void Worker::ProcessHwSampleInstructionRetired( const QueueHwSample& ev )
{
const auto time = TscTime( ev.time - m_data.baseTime );
auto it = m_data.hwSamples.find( ev.ip );
if( it == m_data.hwSamples.end() ) it = m_data.hwSamples.emplace( ev.ip, HwSampleData {} ).first;
it->second.retired++;
it->second.retired.push_back( time );
}
void Worker::ProcessHwSampleCacheReference( const QueueHwSample& ev )
{
const auto time = TscTime( ev.time - m_data.baseTime );
auto it = m_data.hwSamples.find( ev.ip );
if( it == m_data.hwSamples.end() ) it = m_data.hwSamples.emplace( ev.ip, HwSampleData {} ).first;
it->second.cacheRef++;
it->second.cacheRef.push_back( time );
}
void Worker::ProcessHwSampleCacheMiss( const QueueHwSample& ev )
{
const auto time = TscTime( ev.time - m_data.baseTime );
auto it = m_data.hwSamples.find( ev.ip );
if( it == m_data.hwSamples.end() ) it = m_data.hwSamples.emplace( ev.ip, HwSampleData {} ).first;
it->second.cacheMiss++;
it->second.cacheMiss.push_back( time );
}
void Worker::ProcessHwSampleBranchRetired( const QueueHwSample& ev )
{
const auto time = TscTime( ev.time - m_data.baseTime );
auto it = m_data.hwSamples.find( ev.ip );
if( it == m_data.hwSamples.end() ) it = m_data.hwSamples.emplace( ev.ip, HwSampleData {} ).first;
it->second.branchRetired++;
it->second.branchRetired.push_back( time );
}
void Worker::ProcessHwSampleBranchMiss( const QueueHwSample& ev )
{
const auto time = TscTime( ev.time - m_data.baseTime );
auto it = m_data.hwSamples.find( ev.ip );
if( it == m_data.hwSamples.end() ) it = m_data.hwSamples.emplace( ev.ip, HwSampleData {} ).first;
it->second.branchMiss++;
it->second.branchMiss.push_back( time );
}
void Worker::ProcessParamSetup( const QueueParamSetup& ev )
@ -7023,6 +7051,21 @@ void Worker::Disconnect()
m_disconnect = true;
}
static void WriteHwSampleVec( FileWrite& f, SortedVector<Int48, Int48Sort>& vec )
{
uint64_t sz = vec.size();
f.Write( &sz, sizeof( sz ) );
if( sz != 0 )
{
if( !vec.is_sorted() ) vec.sort();
int64_t refTime = 0;
for( auto& v : vec )
{
WriteTimeOffset( f, refTime, v.Val() );
}
}
}
void Worker::Write( FileWrite& f, bool fiDict )
{
DoPostponedWork();
@ -7563,7 +7606,12 @@ void Worker::Write( FileWrite& f, bool fiDict )
for( auto& v : m_data.hwSamples )
{
f.Write( &v.first, sizeof( v.first ) );
f.Write( &v.second, sizeof( v.second ) );
WriteHwSampleVec( f, v.second.cycles );
WriteHwSampleVec( f, v.second.retired );
WriteHwSampleVec( f, v.second.cacheRef );
WriteHwSampleVec( f, v.second.cacheMiss );
WriteHwSampleVec( f, v.second.branchRetired );
WriteHwSampleVec( f, v.second.branchMiss );
}
sz = m_data.sourceFileCache.size();
@ -7775,8 +7823,12 @@ uint64_t Worker::GetHwSampleCount() const
uint64_t cnt = 0;
for( auto& v : m_data.hwSamples )
{
cnt += v.second.cycles;
cnt += v.second.retired;
cnt += v.second.cycles.size();
cnt += v.second.retired.size();
cnt += v.second.cacheRef.size();
cnt += v.second.cacheMiss.size();
cnt += v.second.branchRetired.size();
cnt += v.second.branchMiss.size();
}
return cnt;
}