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Simplify delay calibration.
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@ -2196,51 +2196,14 @@ void Profiler::CalibrateTimer()
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#endif
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}
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class FakeZone
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{
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public:
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FakeZone( const SourceLocationData* srcloc ) : m_id( (uint64_t)srcloc ) {}
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~FakeZone() {}
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private:
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volatile uint64_t m_id;
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};
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void Profiler::CalibrateDelay()
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{
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enum { Iterations = 50000 };
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enum { Events = Iterations * 2 }; // start + end
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static_assert( Events * 2 < QueuePrealloc, "Delay calibration loop will allocate memory in queue" );
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static_assert( Events < QueuePrealloc, "Delay calibration loop will allocate memory in queue" );
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moodycamel::ProducerToken ptoken_detail( GetQueue() );
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moodycamel::ConcurrentQueue<QueueItem>::ExplicitProducer* ptoken = GetQueue().get_explicit_producer( ptoken_detail );
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for( int i=0; i<Iterations; i++ )
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{
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static const tracy::SourceLocationData __tracy_source_location { nullptr, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 };
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{
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Magic magic;
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auto& tail = ptoken->get_tail_index();
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auto item = ptoken->enqueue_begin( magic );
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MemWrite( &item->hdr.type, QueueType::ZoneBegin );
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MemWrite( &item->zoneBegin.time, Profiler::GetTime() );
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MemWrite( &item->zoneBegin.srcloc, (uint64_t)&__tracy_source_location );
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tail.store( magic + 1, std::memory_order_release );
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}
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{
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Magic magic;
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auto& tail = ptoken->get_tail_index();
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auto item = ptoken->enqueue_begin( magic );
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MemWrite( &item->hdr.type, QueueType::ZoneEnd );
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MemWrite( &item->zoneEnd.time, GetTime() );
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tail.store( magic + 1, std::memory_order_release );
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}
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}
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const auto f0 = GetTime();
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for( int i=0; i<Iterations; i++ )
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{
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static const tracy::SourceLocationData __tracy_source_location { nullptr, __FUNCTION__, __FILE__, (uint32_t)__LINE__, 0 };
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FakeZone ___tracy_scoped_zone( &__tracy_source_location );
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}
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const auto t0 = GetTime();
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for( int i=0; i<Iterations; i++ )
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{
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@ -2265,8 +2228,7 @@ void Profiler::CalibrateDelay()
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}
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const auto t1 = GetTime();
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const auto dt = t1 - t0;
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const auto df = t0 - f0;
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m_delay = ( dt - df ) / Events;
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m_delay = dt / Events;
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auto mindiff = std::numeric_limits<int64_t>::max();
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for( int i=0; i<Iterations * 10; i++ )
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@ -2281,7 +2243,7 @@ void Profiler::CalibrateDelay()
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enum { Bulk = 1000 };
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moodycamel::ConsumerToken token( GetQueue() );
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int left = Events * 2;
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int left = Events;
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QueueItem item[Bulk];
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while( left != 0 )
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{
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@ -2289,6 +2251,7 @@ void Profiler::CalibrateDelay()
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assert( sz > 0 );
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left -= (int)sz;
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}
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assert( GetQueue().size_approx() == 0 );
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}
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void Profiler::SendCallstack( int depth, const char* skipBefore )
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