泛型與非泛型代碼性能比較

using System;

using System.Collections.Generic;

using System.Text;

using System.Collections;

namespace ConsoleApplication1

{

//非泛型類

public class RegularStack

{

private object[] frames;

private int pointer = 0;

public RegularStack(int size)

{

this.frames = new object[size];

}

//進棧

public void Push(object frame)

{

this.frames[pointer++] = frame;

}

//出棧

public object Pop()

{

return this.frames[--pointer];

}

//泛型類

public class GenericStack<T>

{

private T[] frames;

private int pointer = 0;

public GenericStack(int size)

{

this.frames = new T[size];

}

//進棧

public void Push(T frame)

{

this.frames[pointer++] = frame;

}

//出棧

public object Pop()

{

return this.frames[--pointer];

}

public class Rectangle

{

public static void Main()

{

int iterations = 10000000; //循環次數

//RegularStack s = new RegularStack(iterations); //執行非泛型

GenericStack<int> s = new GenericStack<int>(iterations); //執行泛型

DateTime start = DateTime.Now; //開始時間

for (int i = 0; i < iterations; i++)

s.Push(i); //進棧

for (int i = 0; i < iterations; i++)

s.Pop(); //出棧

float ticks = DateTime.Now.Ticks - start.Ticks;

float duration = ticks / TimeSpan.TicksPerSecond; //花費時間

Console.WriteLine("Duration = " + string.Format("{0:#0.0000}", duration));

}

// int iterations = 100000; //循環次數

// 執行非泛型花費時間： 0.0156

// 執行泛型花費時間: 0.0000

// int iterations = 1000000; //循環次數

// 執行非泛型花費時間： 0.0938

// 執行泛型花費時間: 0.0313

// int iterations = 10000000; //循環次數

// 執行非泛型花費時間： 2.7183

// 執行泛型花費時間: 0.4063

posted @ 2008-01-18 17:33 love .net FrameWork 閱讀(665) 評論(0) 收藏舉報

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泛型與非泛型代碼性能比較

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