Calculated statistics of memory usage e.g. in a specific memory type, heap, custom pool, or total. More...

#include <vk_mem_alloc.h>

Public Attributes
uint32_t	blockCount
	Number of `VkDeviceMemory` objects - Vulkan memory blocks allocated.

uint32_t	allocationCount
	Number of VmaAllocation objects allocated.

VkDeviceSize	blockBytes
	Number of bytes allocated in `VkDeviceMemory` blocks.

VkDeviceSize	allocationBytes
	Total number of bytes occupied by all VmaAllocation objects.

Detailed Description

Calculated statistics of memory usage e.g. in a specific memory type, heap, custom pool, or total.

These are fast to calculate. See functions: vmaGetHeapBudgets(), vmaGetPoolStatistics().

Member Data Documentation

◆ allocationBytes

VkDeviceSize VmaStatistics::allocationBytes

Total number of bytes occupied by all VmaAllocation objects.

Always less or equal than blockBytes. Difference (blockBytes - allocationBytes) is the amount of memory allocated from Vulkan but unused by any VmaAllocation.

◆ allocationCount

uint32_t VmaStatistics::allocationCount

Number of VmaAllocation objects allocated.

Dedicated allocations have their own blocks, so each one adds 1 to allocationCount as well as blockCount.

◆ blockBytes

VkDeviceSize VmaStatistics::blockBytes

Number of bytes allocated in VkDeviceMemory blocks.

Note: To avoid confusion, please be aware that what Vulkan calls an "allocation" - a whole VkDeviceMemory object (e.g. as in VkPhysicalDeviceLimits::maxMemoryAllocationCount) is called a "block" in VMA, while VMA calls "allocation" a VmaAllocation object that represents a memory region sub-allocated from such block, usually for a single buffer or image.

◆ blockCount

uint32_t VmaStatistics::blockCount

Number of VkDeviceMemory objects - Vulkan memory blocks allocated.

The documentation for this struct was generated from the following file: