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CACHE_DESCRIPTOR structure (winnt.h)

  • Article

Describes the cache attributes.

Syntax

typedef struct _CACHE_DESCRIPTOR {
  BYTE                 Level;
  BYTE                 Associativity;
  WORD                 LineSize;
  DWORD                Size;
  PROCESSOR_CACHE_TYPE Type;
} CACHE_DESCRIPTOR, *PCACHE_DESCRIPTOR;

Members

Level

The cache level. This member can currently be one of the following values; other values may be supported in the future.

Value Meaning
1
 L1
2
 L2
3
 L3

Associativity

The cache associativity. If this member is CACHE_FULLY_ASSOCIATIVE (0xFF), the cache is fully associative.

LineSize

The cache line size, in bytes.

Size

The cache size, in bytes.

Type

The cache type. This member is a PROCESSOR_CACHE_TYPE value.

Requirements

Requirement Value
Minimum supported client Windows Vista, Windows XP Professional x64 Edition [desktop apps only]
Minimum supported server Windows Server 2008, Windows Server 2003 with SP1 [desktop apps only]
Header winnt.h (include Windows.h)

See also

GetLogicalProcessorInformation

PROCESSOR_CACHE_TYPE

SYSTEM_LOGICAL_PROCESSOR_INFORMATION