SMPProcessorAffinityMask Metabase Property

Applies To: Windows Server 2003, Windows Server 2003 with SP1

The SMPProcessorAffinityMask property configures the hexadecimal processor mask. The hexadecimal processor mask indicates to which CPU the worker processes in an application pool should be bound. Before this property takes affect, the SMPAffinitized Metabase Property must be set to true for the application pool.

Note

Do not set this property to zero. Doing so causes no SMP affinity to be configured, creating an error condition.

The metabase represents unlimited as the DWORD value of 4294967295 (0xFFFFFFFF); however, VBScript represents unlimited in hexadecimal format as &HFFFFFFFF. Previous versions of IIS represented unlimited as -1.

Attribute Name Attribute Value

XML Data Type

DWORD

WMI Data Type

SINT32

ADSI Data Type

DWORD

ABO Data Type

DWORD

ABO Metabase Identifier

MD_APPPOOL_SMP_AFFINITIZED_PROCESSOR_MASK

Attributes

INHERIT

Default Value

4294967295

MetaFlagsEx

CACHE_PROPERTY_MODIFIED

User Type

IIS_MD_UT_SERVER

ID

9008

Configurable Locations

You can configure this property at the following locations in the IIS metabase.

Metabase Path IIS Admin Object Type

/LM/W3SVC/AppPools/DefaultAppPool /LM/W3SVC/AppPools/DefaultAppPool/application_pool_name

IIsApplicationPool

/LM/W3SVC/AppPools

IIsApplicationPools

Code Example

For general code examples, see Code Examples to Configure Metabase Properties.