Performance Comparison between generic and non-Generic Code

Using system;
Using system. Collections. Generic;
Using system. text;
Using system. collections;

Namespace consoleapplication1
{
// Non-generic class
Public class regularstack
{
Private object [] frames;

Private int pointer = 0;

Public regularstack (INT size)
{
This. Frames = new object [size];
}

// Stack entry
Public void push (object frame)
{
This. Frames [pointer ++] = frame;
}

// Output Stack
Public object POP ()
{
Return this. Frames [-- pointer];
}
}

// Generic class
Public class genericstack <t>
{
Private T [] frames;

Private int pointer = 0;

Public genericstack (INT size)
{
This. Frames = new T [size];
}

// Stack entry
Public void push (T frame)
{
This. Frames [pointer ++] = frame;
}

// Output Stack
Public object POP ()
{
Return this. Frames [-- pointer];
}

}

Public class rectangle
{
Public static void main ()
{
Int iterations = 10000000; // number of cycles

// Regularstack S = new regularstack (iterations); // executes non-generic
Genericstack <int> S = new genericstack <int> (iterations); // execute generic

Datetime start = datetime. Now; // start time

For (INT I = 0; I <iterations; I ++)
S. Push (I); // Stack

For (INT I = 0; I <iterations; I ++)
S. Pop (); // output Stack

Float ticks = datetime. Now. ticks-start. ticks;
Float duration = ticks/timespan. tickspersecond; // time spent

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

}
}
}

// Int iterations = 100000; // number of cycles
// Execution time of non-generic types: 0.0156
// Execution time of the generic type: 0.0000

// Int iterations = 1000000; // number of cycles
// Execution time of non-generic types: 0.0938
// Execution time of the generic type: 0.0313

// Int iterations = 10000000; // number of cycles
// Execution time of non-generic types: 2.7183
// Execution time of the generic type: 0.4063