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Open 3D Engine Atom Gem API Reference
24.09
O3DE is an open-source, fully-featured, high-fidelity, modular 3D engine for building games and simulations, available to every industry.
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Open 3D Engine Atom Gem API Reference
24.09
O3DE is an open-source, fully-featured, high-fidelity, modular 3D engine for building games and simulations, available to every industry.
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Statistics of current memory usage and available budget for a specific memory heap. More...
#include <vk_mem_alloc.h>
Public Attributes | |
| VmaStatistics | statistics |
| Statistics fetched from the library. | |
| VkDeviceSize | usage |
| Estimated current memory usage of the program, in bytes. More... | |
| VkDeviceSize | budget |
| Estimated amount of memory available to the program, in bytes. More... | |
Statistics of current memory usage and available budget for a specific memory heap.
These are fast to calculate. See function vmaGetHeapBudgets().
| VkDeviceSize VmaBudget::budget |
Estimated amount of memory available to the program, in bytes.
Fetched from system using VK_EXT_memory_budget extension if enabled.
It might be different (most probably smaller) than VkMemoryHeap::size[heapIndex] due to factors external to the program, decided by the operating system. Difference budget - usage is the amount of additional memory that can probably be allocated without problems. Exceeding the budget may result in various problems.
| VkDeviceSize VmaBudget::usage |
Estimated current memory usage of the program, in bytes.
Fetched from system using VK_EXT_memory_budget extension if enabled.
It might be different than statistics.blockBytes (usually higher) due to additional implicit objects also occupying the memory, like swapchain, pipelines, descriptor heaps, command buffers, or VkDeviceMemory blocks allocated outside of this library, if any.
1.9.1