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NPerf, A Performance Benchmark Framework for .NET

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25 Jan 20044 min read 232.5K   705   139  
NPerf is a framework for benchmarking classes and methods, that tastes like NUnit.
//------------------------------------------------------------------------------
// <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>
//------------------------------------------------------------------------------


namespace System.Perf 
{
	using System;
	using System.Text;
	using System.IO;
	using NPerf.Framework;
	
	
	public interface IStringRunner
	{
		void Concat(string s);
		void ConcatFormat(string format, params string[] s);
	}
	
	public class StringWriterRunner : IStringRunner
	{
		private StringWriter sw;
		public StringWriterRunner()
		{
			this.sw = new StringWriter();
		}
		
		public void Concat(string s)
		{
			sw.Write(s);
		}
		
		public void ConcatFormat(string format, params string[] s)
		{
			sw.Write(format,s);
		}
	}
	
	public class StringBuilderRunner : IStringRunner
	{
		private StringBuilder sb;
		public StringBuilderRunner()
		{
			this.sb = new StringBuilder();
		}
		
		public void Concat(string s)
		{
			sb.Append(s);
		}
		
		public void ConcatFormat(string format, params string[] s)
		{
			sb.AppendFormat(format,s);
		}
	}
	
	public class StringRunner : IStringRunner
	{
		private String sb;
		public StringRunner()
		{
			this.sb = "";
		}
		
		public void Concat(string s)
		{
			sb+=s;
		}
		
		public void ConcatFormat(string format, params string[] s)
		{
			sb+=String.Format(format,s);
		}
	}	
	
	[PerfTester(typeof(IStringRunner),13
	            ,Description = "Testing build construction"
	            ,FeatureDescription="Number of concatenations")]
	public class StringBuildingTester
	{
		private int count;
		private Random rnd = new Random();
		
		internal int CollectionCount(int testIndex)
		{
			int n = 0;
			
			if (testIndex < 0)
				n=3;
			else
				n = (int)Math.Pow(2,testIndex);
			
			return n;			
		}		
		
		[PerfRunDescriptor]
		public double RunDescription(int testIndex)
		{
			return (double)CollectionCount(testIndex);
		}
		
		[PerfSetUp]
		public void SetUp(int index, IStringRunner dic)
		{
			this.count = CollectionCount(index);	
		}
		
		[PerfTest]
		public void Concat(IStringRunner sr)
		{
			string s = "myword";
			for(int i = 0;i<count;++i)
				sr.Concat(s);
		}		

		
		[PerfTest]
		public void ConcatFormat(IStringRunner sr)
		{
			string format="{0} {1}";
			string s1 = "myword";
			string s2 = "myotherword";
			for(int i = 0;i<count;++i)
				sr.ConcatFormat(format,s1,s2);
		}		
		
	}
}

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Written By
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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