VulkanHub
Enum

VkQueueGlobalPriorityKHR

Values specifying a system-wide queue priority

Possible values of VkDeviceQueueGlobalPriorityCreateInfoKHR::globalPriority, specifying a system-wide priority level are:

typedef enum VkQueueGlobalPriorityKHR {
    VK_QUEUE_GLOBAL_PRIORITY_LOW_KHR = 128,
    VK_QUEUE_GLOBAL_PRIORITY_MEDIUM_KHR = 256,
    VK_QUEUE_GLOBAL_PRIORITY_HIGH_KHR = 512,
    VK_QUEUE_GLOBAL_PRIORITY_REALTIME_KHR = 1024,
    VK_QUEUE_GLOBAL_PRIORITY_LOW_EXT = VK_QUEUE_GLOBAL_PRIORITY_LOW_KHR,
    VK_QUEUE_GLOBAL_PRIORITY_MEDIUM_EXT = VK_QUEUE_GLOBAL_PRIORITY_MEDIUM_KHR,
    VK_QUEUE_GLOBAL_PRIORITY_HIGH_EXT = VK_QUEUE_GLOBAL_PRIORITY_HIGH_KHR,
    VK_QUEUE_GLOBAL_PRIORITY_REALTIME_EXT = VK_QUEUE_GLOBAL_PRIORITY_REALTIME_KHR,
} VkQueueGlobalPriorityKHR;

or the equivalent

#define VkQueueGlobalPriorityEXT VkQueueGlobalPriorityKHR

Priority values are sorted in ascending order. A comparison operation on the enum values can be used to determine the priority order.

  • VK_QUEUE_GLOBAL_PRIORITY_LOW_KHR is below the system default. Useful for non-interactive tasks.
  • VK_QUEUE_GLOBAL_PRIORITY_MEDIUM_KHR is the system default priority.
  • VK_QUEUE_GLOBAL_PRIORITY_HIGH_KHR is above the system default.
  • VK_QUEUE_GLOBAL_PRIORITY_REALTIME_KHR is the highest priority. Useful for critical tasks.