private void StartBenchmark()
{
StartStopTestButton.Content = "Abort benchmark";
OptionsGrid.Visibility = Visibility.Collapsed;
InfoTextBlock.Visibility = Visibility.Visible;
_mouseCameraController.IsEnabled = false;
_totalRenderTimes.Clear();
_performanceAnalyzer = new PerformanceAnalyzer(_mainDXViewportView);
// get only system info
string systemInfo = _performanceAnalyzer.GetResultsText(addSystemInfo: true, addDXEngineInfo: true, addGarbageCollectionsInfo: false, addTotals: false, addStateChangesStatistics: false, addFirstFrameStatisticsWhenAvailable: false, addRenderingStatistics: false, addMultiThreadingStatistics: false);
InfoTextBlock.Text = $"Starting benchmark ({_mainDXViewportView.PresentationType} with {_objectsCount} objects)\r\nwith changing MaxBackgroundThreadsCount from 0 to {ThreadsCountSlider.Maximum:0}.\r\n\r\n{systemInfo}\r\n====================\r\n\r\nRendering with MaxBackgroundThreadsCount = 0\r\n\r\n";
InfoTextBlock.UpdateLayout();
InfoTextBlock.ScrollToEnd();
SetLightingMode(LightingMode.DirectionalLight);
ThreadsCountSlider.Value = 0;
_benchmarkResults = new StringBuilder();
_benchmarkTotalRenderTimes = new List <double>();
_benchmarkStepFramesCount = 1;
_mainDXViewportView.SceneRendered += OnBenchmarkSceneRendered;
}
private void StopTest(bool showResults)
{
Ab3d.DirectX.Controls.D3DHost.RenderAsManyFramesAsPossible = false;
MainDXViewportView.SceneRendered -= OnSceneRendered;
if (_stopwatch != null)
{
_stopwatch.Stop();
}
Application.Current.MainWindow.Title = _savedWindowTitle;
if (_performanceAnalyzer == null)
{
return;
}
_performanceAnalyzer.StopCollectingStatistics();
var resultsText = _performanceAnalyzer.GetResultsText();
if (showResults)
{
ResultsTextBox.Text = resultsText;
ResultsTextBox.Visibility = Visibility.Visible;
MainDXViewportView.Visibility = Visibility.Collapsed;
}
}
private void OnBenchmarkSceneRendered(object sender, EventArgs e)
{
var now = DateTime.Now;
if (_benchmarkStepFramesCount == 1)
{
// Starting one benchmark step
_performanceAnalyzer.StartCollectingStatistics();
_benchmarkStepStartTime = now;
}
else if (_mainDXViewportView.DXScene.Statistics != null) // just in case check that Statistics is not null (this should not happen because we set DXDiagnostics.IsCollectingStatistics to true)
{
// else collect TotalRenderTimeMs
_totalRenderTimes.Add(_mainDXViewportView.DXScene.Statistics.TotalRenderTimeMs);
}
// Complete one benchmark step after 5 seconds or after 200 frames
if ((now - _benchmarkStepStartTime).TotalSeconds > 5 || _benchmarkStepFramesCount > 200)
{
_performanceAnalyzer.StopCollectingStatistics();
double totalRenderTimes;
if (_totalRenderTimes.Count > 0)
{
totalRenderTimes = _totalRenderTimes.Average();
_totalRenderTimes.Clear();
}
else
{
totalRenderTimes = 0;
}
_benchmarkTotalRenderTimes.Add(totalRenderTimes);
int threadsCount = _mainDXViewportView.DXScene.MaxBackgroundThreadsCount;
string resultsText = _performanceAnalyzer.GetResultsText(addSystemInfo: false,
addDXEngineInfo: false,
addGarbageCollectionsInfo: false,
addTotals: true,
addStateChangesStatistics: false,
addFirstFrameStatisticsWhenAvailable: false,
addRenderingStatistics: true,
addMultiThreadingStatistics: true);
AddInfoText(resultsText);
if (ThreadsCountSlider.Value < ThreadsCountSlider.Maximum)
{
ThreadsCountSlider.Value += 1; // Increase threads count
AddInfoText(string.Format("====================\r\n\r\nRendering with MaxBackgroundThreadsCount = {0}\r\n", threadsCount + 1));
}
else
{
StopBenchmark();
}
_benchmarkStepFramesCount = 0;
}
_benchmarkStepFramesCount++;
}
