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ProcessModelSection.CpuMask Property

Gets or sets a value indicating which processors on a multiprocessor server are eligible to run ASP.NET processes.

Namespace:  System.Web.Configuration
Assembly:  System.Web (in System.Web.dll)

[ConfigurationPropertyAttribute("cpuMask", DefaultValue = "0xffffffff")]
public int CpuMask { get; set; }

Property Value

Type: System.Int32
The number representing the bit pattern to apply. The default value is 0xFFFFFFFF.

The CpuMask value specifies a bit pattern that indicates the CPUs eligible to run ASP.NET threads. If the WebGarden property is set to true, the CpuMask limits worker processes to the number of eligible CPUs. The maximum allowed number of worker processes is equal to the number of CPUs. By default, all CPUs are enabled and ASP.NET launches one process for each CPU. If the WebGarden property is set to false, the CpuMask attribute is ignored and only one worker process will run.

The following code example shows how to access the CpuMask property.

                // Get the current CpuMask property value. 
                int cpuMask = 

                // Set the CpuMask property to 0x000000FF.
                processModelSection.CpuMask = 0x000000FF;

.NET Framework

Supported in: 4.6, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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