Profiler: hierarchy (+start values)
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b5d7d3775b
commit
22a5a9b836
3 changed files with 72 additions and 8 deletions
16
main.cc
16
main.cc
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@ -72,8 +72,10 @@ T_Main::T_Main( )
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void T_Main::mainLoop( )
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{
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T_Profiler::Profiler.clear( );
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auto& p( T_Profiler::Profiler );
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p.clear( );
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while ( !done ) {
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p.startFrame( );
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T_Profiler::Profiler.start( "Full frame" );
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startIteration( );
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if ( !done ) {
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@ -84,11 +86,13 @@ void T_Main::mainLoop( )
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T_Profiler::Profiler.end( "Full frame" );
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SDL_GL_SwapWindow( window );
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auto const& p( T_Profiler::Profiler );
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p.endFrame( );
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const auto n( p.sections( ) );
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for ( auto i = 0u ; i < n ; i ++ ) {
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printf( "%s: %fms\n" , p.nameOf( i ).c_str( ) ,
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p.resultOf( i ) );
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printf( "%s: %fms (start %fms)\n" ,
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p.nameOf( i ).c_str( ) ,
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p.durationOf( i ) ,
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p.startOf( i ) );
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}
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}
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}
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@ -176,10 +180,10 @@ void T_Main::makeUI( )
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void T_Main::render( )
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{
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T_Profiler::Profiler.start( "Effects" );
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T_Profiler::Profiler.start( "Render" );
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raymarcher->render( );
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bloomPass->render( );
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glFinish( ); T_Profiler::Profiler.end( "Effects" );
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glFinish( ); T_Profiler::Profiler.end( "Render" );
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glUseProgram( 0 );
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ImGui::Render( );
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46
profiling.cc
46
profiling.cc
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@ -8,6 +8,10 @@
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T_Profiler T_Profiler::Profiler;
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constexpr uint32_t T_Profiler::Samples;
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constexpr uint32_t T_Profiler::History;
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constexpr uint32_t T_Profiler::Invalid;
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void T_Profiler::clear( )
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{
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@ -18,6 +22,32 @@ void T_Profiler::clear( )
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void T_Profiler::startFrame( )
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{
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previous_ = Invalid;
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current_ = Invalid;
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}
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void T_Profiler::endFrame( )
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{
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const auto n( sections_.size( ) );
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while ( secDurations_.size( ) < n ) {
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secDurations_.push_back( 0 );
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secStarts_.push_back( 0 );
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}
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for ( auto i = 0u ; i < n ; i ++ ) {
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const float d = computeDuration( i );
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secDurations_[ i ] = d;
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if ( parents_[ i ] != Invalid ) {
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assert( parents_[ i ] < i );
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secStarts_[ i ] = secStarts_[ parents_[ i ] ];
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} else if ( chain_[ i ] != Invalid ) {
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assert( chain_[ i ] < i );
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secStarts_[ i ] = secStarts_[ chain_[ i ] ]
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+ secDurations_[ chain_[ i ] ];
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} else {
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secStarts_[ i ] = 0;
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}
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}
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}
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void T_Profiler::start(
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@ -29,8 +59,19 @@ void T_Profiler::start(
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sections_.push_back( section );
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samples_.push_back( T_SamplesList_{ } );
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starts_.push_back( 0u );
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chain_.push_back( Invalid );
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parents_.push_back( Invalid );
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}
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chain_[ pos ] = previous_;
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if ( current_ != Invalid ) {
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parents_[ pos ] = current_;
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previous_ = Invalid;
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} else {
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parents_[ pos ] = Invalid;
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}
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current_ = pos;
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struct timespec ts;
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clock_gettime( CLOCK_MONOTONIC , &ts );
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starts_[ pos ] = ts.tv_sec * 1000000000 + ts.tv_nsec;
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@ -63,9 +104,12 @@ void T_Profiler::end(
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}
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samples[ 0 ].sum += float( duration ) * 1e-6;
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samples[ 0 ].nSamples ++;
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previous_ = pos;
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current_ = Invalid;
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}
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float T_Profiler::resultOf(
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float T_Profiler::computeDuration(
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__rd__ const uint32_t section ) const
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{
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auto const& samples( samples_[ section ] );
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18
profiling.hh
18
profiling.hh
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@ -18,6 +18,7 @@ struct T_Profiler
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{
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static constexpr uint32_t Samples = 4;
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static constexpr uint32_t History = 4;
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static constexpr uint32_t Invalid = 0xffffffff;
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static T_Profiler Profiler;
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void clear( );
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@ -25,6 +26,7 @@ struct T_Profiler
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void startFrame( );
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void start( __rd__ std::string const& section );
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void end( __rd__ std::string const& section );
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void endFrame( );
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uint32_t sections( ) const noexcept
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{ return sections_.size( ); }
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@ -33,15 +35,29 @@ struct T_Profiler
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__rd__ const uint32_t section ) const
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{ return sections_[ section ]; }
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float resultOf( __rd__ const uint32_t section ) const;
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float durationOf( __rd__ const uint32_t section ) const
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{ return secDurations_[ section ]; }
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float startOf( __rd__ const uint32_t section ) const
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{ return secStarts_[ section ]; }
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private:
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using T_SamplesList_ = std::vector< T_ProfilerSamples >;
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using T_Data_ = std::vector< T_SamplesList_ >;
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uint32_t find( __rd__ std::string const& section ) const;
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float computeDuration(
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__rd__ const uint32_t section ) const;
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uint32_t previous_;
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uint32_t current_;
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std::vector< std::string > sections_;
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std::vector< uint32_t > chain_;
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std::vector< uint32_t > parents_;
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T_Data_ samples_;
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std::vector< uint64_t > starts_;
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std::vector< float > secDurations_;
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std::vector< float > secStarts_;
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};
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