VK_EXT_memory_priority

Other Extension Metadata

Last Modified Date

2018-10-08

Contributors

• Jeff Bolz, NVIDIA
• Jeff Juliano, NVIDIA

Description

This extension adds a priority value specified at memory allocation time. On some systems with both device-local and non-device-local memory heaps, the implementation may transparently move memory from one heap to another when a heap becomes full (for example, when the total memory used across all processes exceeds the size of the heap). In such a case, this priority value may be used to determine which allocations are more likely to remain in device-local memory.

New Structures

• Extending VkMemoryAllocateInfo:
  • VkMemoryPriorityAllocateInfoEXT
• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceMemoryPriorityFeaturesEXT

New Enum Constants

• VK_EXT_MEMORY_PRIORITY_EXTENSION_NAME
• VK_EXT_MEMORY_PRIORITY_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_MEMORY_PRIORITY_ALLOCATE_INFO_EXT
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_PRIORITY_FEATURES_EXT

Version History

• Revision 1, 2018-10-08 (Jeff Bolz)
  • Initial revision