queueCreateInfo

queueCreateInfo is a data structure used in graphics programming, particularly within the Vulkan API, to specify the creation parameters for a queue. Queues in Vulkan represent execution threads for submitting commands to a device, such as graphics, compute, or transfer operations. The queue creation information is essential for defining how the device's queues are configured during device initialization.

Typically, queueCreateInfo includes several key fields: the queue family index, which identifies the type of queue and its capabilities; the number of queues to create within that family; and a set of priorities for each queue, represented as floating-point values between 0.0 and 1.0. These priorities influence the scheduling of queues by the driver, with higher priorities indicating more urgent tasks.

In Vulkan, an array of queueCreateInfo structures is used when creating a logical device to specify multiple queues or queue families. Each queueCreateInfo instance describes the parameters of a specific queue family, allowing for detailed control of command submission. Proper configuration of queueCreateInfo is crucial for optimizing application performance and ensuring that the hardware resources are utilized effectively.

Overall, queueCreateInfo serves as a foundational component in Vulkan device setup, facilitating the specification of queue properties necessary for command submission and execution management in graphics and compute applications.