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NPerf, A Performance Benchmark Framework for .NET

, 25 Jan 2004
NPerf is a framework for benchmarking classes and methods, that tastes like NUnit.
nperf_bin.zip
Release
NPerf.Cons.exe
NPerf.Core.dll
NPerf.Framework.chm
NPerf.Framework.dll
NPerf.Report.dll
scpl.dll
System.Perf.dll
nperf_demo.zip
Releases
Unpackaged
nperf-1.1-Release
nperf
bin
Release
nperf-doc-1.1.chm
NPerf.Cons.exe
NPerf.Core.dll
NPerf.Framework.dll
NPerf.Report.dll
scpl.dll
System.Perf.dll
nperf_src.zip
src
build
NAnt
i18n.xsl
ICSharpCode.SharpCvsLib.dll
ICSharpCode.SharpZipLib.dll
log4net.dll
NAnt.Contrib.Tasks.dll
NAnt.Core.dll
NAnt.DotNetTasks.dll
NAnt.exe
NAnt.NUnit.dll
NAnt.NUnit1Tasks.dll
NAnt.NUnit2ReportTasks.dll
NAnt.NUnit2Tasks.dll
NAnt.SourceControlTasks.dll
NAnt.VisualCppTasks.dll
NAnt.VSNetTasks.dll
NAnt.Win32Tasks.dll
NAnt.ZipTasks.dll
NDoc.Core.dll
NDoc.Documenter.Msdn.dll
NDoc.Documenter.NAnt.dll
NUnit-Frame.xsl
NUnit-NoFrame.xsl
nunit.framework.dll
NUnitCore.dll
toolkit.xsl
NPerf.Cons
Collections
App.ico
NPerf.Cons.cmbx
NPerf.Cons.prjx
NPerf.Core
Collections
Monitoring
Tracers
NPerf.Core.cmbx
NPerf.Core.prjx
NPerf.Framework
NPerf.Framework.cmbx
NPerf.Framework.prjx
NPerf.Report
scpl
scpl.dll
System.Perf
NPerf.Framework.chm
nperf.ndoc
nperf.png
//------------------------------------------------------------------------------
// <autogenerated>
//     This code was generated by a tool.
//     Runtime Version: 1.1.4322.573
//
//     Changes to this file may cause incorrect behavior and will be lost if 
//     the code is regenerated.
// </autogenerated>
//------------------------------------------------------------------------------
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.Drawing.Text;
using System.Collections;

namespace NPerf.Report
{
	using NPerf.Core;
	using NPerf.Core.Collections;
	
	using scpl;
	
	public class ChartReport
	{
		private int width;
		private int height;
		private ColorGenerator colors;

		
		public ChartReport(int width, int height)
		{
			if (width<1)
				throw new ArgumentException("width smaller that 1");
			if (height<1)
				throw new ArgumentException("height smaller that 1");
			this.width = width;
			this.height = height;
			this.colors = new ColorGenerator(ColorMap.Jet,255);
		}
		
		public ColorGenerator Colors
		{
			get
			{
				return this.colors;
			}
		}
		
		public IDictionary Render(PerfTestSuite suite)
		{
			if (suite==null)
				throw new ArgumentNullException("suite");
			
			Hashtable bitmaps = new Hashtable();
			foreach(PerfTest test in suite.Tests)
			{
				bitmaps.Add(test, Render(suite,test));					
			}
			return bitmaps;
		}
		
		public Bitmap Render(PerfTestSuite suite, PerfTest test)
		{
			Bitmap bmp = new Bitmap(width, height, PixelFormat.Format24bppRgb);
			Render(bmp,suite,test);
			
			return bmp;
		}
		
		public void Render(Bitmap bmp, PerfTestSuite suite, PerfTest test)
		{
			if (bmp==null)
				throw new ArgumentNullException("bmp");
			if (suite==null)
				throw new ArgumentNullException("suite");
			if (!suite.Tests.Contains(test))
				throw new ArgumentException("suite does not contain test");
			if (test.Runs.Count==0)
				throw new ArgumentException("no run in benchmark");
						
			Hashtable resultDatas = new Hashtable();
			PerfTestRun firstRun = test.Runs[0];
			foreach(PerfResult result in firstRun.Results)
			{
				resultDatas[result.TestedType] = new double[test.Runs.Count];
			}
			foreach(PerfFailedResult failedResult in firstRun.FailedResults)
			{
				resultDatas[failedResult.TestedType] = new double[test.Runs.Count];
			}
			
			// setting up histograms
			int index = 0;
			foreach(PerfTestRun run in test.Runs)
			{
				AddResult(run,resultDatas, index++);
			}
			
			// creating lines
			PlotSurface2D plot = CreatePlot(suite,test);			
			double[] xData = CreateFeatureData(test);
			this.Colors.Reset(resultDatas.Count);
			foreach(DictionaryEntry de in resultDatas)
			{
				AddLine(plot, xData, (double[])de.Value, (string)de.Key);
			}
			
			if (plot.YAxis1!=null)
				plot.YAxis1.Label = "Duration [log(s)]";
			if (suite.FeatureDescription!=null && plot.XAxis1!=null)
				plot.XAxis1.Label = suite.FeatureDescription;
			
			// plot refresh
			Graphics g = Graphics.FromImage(bmp);
			g.SmoothingMode = SmoothingMode.AntiAlias;
			g.TextRenderingHint = TextRenderingHint.AntiAlias;
			g.FillRectangle(new SolidBrush(Color.LightGray), new Rectangle(0,0,bmp.Width,bmp.Height));
			plot.Draw(g, new Rectangle(0,0,bmp.Width,bmp.Height));
		}
		
		internal PlotSurface2D CreatePlot(PerfTestSuite suite, PerfTest test)
		{
			PlotSurface2D plot = new PlotSurface2D();
						
			plot.Title = String.Format("{0} - {1}", suite.Name, test.Name);
			// setting up plot
			plot.LegendBorderStyle = Legend.BorderType.Shadow;
			plot.ShowLegend = true;
			plot.PlotBackColor = Color.White;
			plot.VerticalEdgeLegendPlacement = Legend.Placement.Outside;
			
			return plot;
		}
		
		internal void AddResult(PerfTestRun run, Hashtable resultDatas, int index)
		{
			foreach(PerfResult result in run.Results)
			{
				double[] data = (double[])resultDatas[result.TestedType];
				data[index] = Math.Log(result.Duration);
			}
			foreach(PerfFailedResult failedResult in run.FailedResults)
			{
				double[] data = (double[])resultDatas[failedResult.TestedType];
				data[index] = 0;
			}
		}
		
		internal double[] CreateFeatureData(PerfTest test)
		{
			double[] xdata = new double[test.Runs.Count];
			int index = 0;
			foreach(PerfTestRun run in test.Runs)
			{
				xdata[index++] = run.Value;
			}
			
			return xdata;
		}
		
		internal void AddLine(PlotSurface2D plot, double[] x, double[] y, string name)
		{
			ArrayAdapter data = new ArrayAdapter(x,y);
			Color c= NextColor();
			LinePlot line = new LinePlot(data);			
			line.Label = name;
			Pen p = new Pen(c,2);
			line.Pen = p;
			plot.Add(line);
		}
		
		internal Color NextColor()
		{
			return this.colors.MoveNextColor();
		}
	}
}

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About the Author

Jonathan de Halleux
Engineer
United States United States
Jonathan de Halleux is Civil Engineer in Applied Mathematics. He finished his PhD in 2004 in the rainy country of Belgium. After 2 years in the Common Language Runtime (i.e. .net), he is now working at Microsoft Research on Pex (http://research.microsoft.com/pex).

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