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Environment.ProcessorCount Property

Gets the number of processors on the current machine.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public static int ProcessorCount { get; }

Property Value

Type: System.Int32
The 32-bit signed integer that specifies the number of processors on the current machine. There is no default.

The following example demonstrates the ProcessorCount property.


// This example demonstrates the 
//     Environment.ProcessorCount property.
using System;

class Sample 
{
    public static void Main() 
    {
    Console.WriteLine("The number of processors " +
        "on this computer is {0}.", 
        Environment.ProcessorCount);
    }
}
/*
This example produces the following results:

The number of processors on this computer is 1.
*/


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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