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Implement ctx switch usage reconstruction.
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8128b3894a
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@ -4868,6 +4868,94 @@ void Worker::ReconstructMemAllocPlot()
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#ifndef TRACY_NO_STATISTICS
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void Worker::ReconstructContextSwitchUsage()
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{
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assert( m_data.cpuDataCount != 0 );
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const auto cpucnt = m_data.cpuDataCount;
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auto& vec = m_data.ctxUsage;
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vec.push_back( ContextSwitchUsage( 0, 0, 0 ) );
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struct Cpu
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{
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bool startDone;
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Vector<ContextSwitchCpu>::iterator it;
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Vector<ContextSwitchCpu>::iterator end;
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};
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std::vector<Cpu> cpus;
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cpus.reserve( cpucnt );
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for( int i=0; i<cpucnt; i++ )
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{
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cpus.emplace_back( Cpu { false, m_data.cpuData[i].cs.begin(), m_data.cpuData[i].cs.end() } );
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}
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uint8_t other = 0;
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uint8_t own = 0;
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for(;;)
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{
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int64_t nextTime = std::numeric_limits<int64_t>::max();
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bool atEnd = true;
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for( int i=0; i<cpucnt; i++ )
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{
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if( cpus[i].it != cpus[i].end )
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{
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atEnd = false;
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const auto ct = !cpus[i].startDone ? cpus[i].it->Start() : cpus[i].it->End();
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if( ct < nextTime ) nextTime = ct;
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}
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}
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if( atEnd ) break;
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for( int i=0; i<cpucnt; i++ )
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{
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while( cpus[i].it != cpus[i].end )
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{
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const auto ct = !cpus[i].startDone ? cpus[i].it->Start() : cpus[i].it->End();
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if( nextTime != ct ) break;
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const auto isOwn = GetPidFromTid( DecompressThreadExternal( cpus[i].it->Thread() ) ) == m_pid;
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if( !cpus[i].startDone )
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{
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if( isOwn )
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{
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own++;
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assert( own <= cpucnt );
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}
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else
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{
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other++;
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assert( other <= cpucnt );
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}
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if( cpus[i].it->End() < 0 )
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{
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cpus[i].it++;
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assert( cpus[i].it = cpus[i].end );
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}
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else
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{
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cpus[i].startDone = true;
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}
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}
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else
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{
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if( isOwn )
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{
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assert( own > 0 );
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own--;
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}
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else
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{
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assert( other > 0 );
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other--;
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}
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cpus[i].startDone = false;
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cpus[i].it++;
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}
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}
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}
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const auto& back = vec.back();
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if( back.Other() != other || back.Own() != own )
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{
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vec.push_back( ContextSwitchUsage( nextTime, other, own ) );
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}
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}
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std::lock_guard<std::shared_mutex> lock( m_data.lock );
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m_data.ctxUsageReady = true;
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}
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