VkMemoryPriorityAllocateInfoEXT

If the pNext chain includes a VkMemoryPriorityAllocateInfoEXT structure, then that structure includes a priority for the memory.

The VkMemoryPriorityAllocateInfoEXT structure is defined as:

typedef struct VkMemoryPriorityAllocateInfoEXT {
    VkStructureType sType;
    const void* pNext;
    float priority;
} VkMemoryPriorityAllocateInfoEXT;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• priority is a floating-point value between 0 and 1, indicating the priority of the allocation relative to other memory allocations. Larger values are higher priority. The granularity of the priorities is implementation-dependent.

Memory allocations with higher priority may be more likely to stay in device-local memory when the system is under memory pressure.

If this structure is not included, it is as if the priority value were 0.5.