This is an official documentation for file format used by Vulkan Memory Allocator library to record and replay sequence of calls to its functions. This feature can be enabled by using
VmaAllocatorCreateInfo::pRecordSettings structure members. For details, see main documentation of the library. Playback can be launched using VmaReplay console application.
Recording is a text file. Line endings: Unix
'\n'. Character encoding: single-byte (can be ASCII or UTF-8, whaterver you use in custom strings). Suggested file extension: csv. File can be processed sequentially - no random access is needed. Each line forms a separate entry. Each line consists of a set of values (also called columns), separated by comma
',' (hence “CSV” format - Comma Separated Values). Number of columns is different in different lines.
First line identifies file format. It must always be:
Vulkan Memory Allocator,Calls recording
Second line identifies format version, where first column is major version and second column is minor version. Formats with only minor version incremented are backward compatible. VmaReplay application supports all older versions. Current version is:
Header is followed by mandatory configuration section (min format version 1.3). It starts with line:
And ends with line:
Between them there can be zero or more lines with configuration options. They store values of various variables from the current environment from the time of recording, like properties and limits of Vulkan physical device, available memory heaps and types, enabled Vulkan extensions, as well macros that configure VMA internals. Supported configuration options are:
VulkanApiVersion,<uint32>,<uint32> PhysicalDevice,apiVersion,<uint32> PhysicalDevice,driverVersion,<uint32> PhysicalDevice,vendorID,<uint32> PhysicalDevice,deviceID,<uint32> PhysicalDevice,deviceType,<uint32> PhysicalDevice,deviceName,<string> PhysicalDeviceLimits,maxMemoryAllocationCount,<uint32> PhysicalDeviceLimits,bufferImageGranularity,<uint64> PhysicalDeviceLimits,nonCoherentAtomSize,<uint64> PhysicalDeviceMemory,HeapCount,<uint32> PhysicalDeviceMemory,Heap,<index:uint32>,size,<uint64> PhysicalDeviceMemory,Heap,<index:uint32>,flags,<uint32> PhysicalDeviceMemory,TypeCount,<uint32> PhysicalDeviceMemory,Type,<index:uint32>,heapIndex,<uint32> PhysicalDeviceMemory,Type,<index:uint32>,propertyFlags,<uint32> Extension,VK_KHR_dedicated_allocation,<bool> Extension,VK_KHR_bind_memory2,<bool> Extension,VK_EXT_memory_budget,<bool> Extension,VK_AMD_device_coherent_memory,<bool> Macro,VMA_DEBUG_ALWAYS_DEDICATED_MEMORY,<bool> Macro,VMA_DEBUG_ALIGNMENT,<uint64> Macro,VMA_DEBUG_MARGIN,<uint64> Macro,VMA_DEBUG_INITIALIZE_ALLOCATIONS,<bool> Macro,VMA_DEBUG_DETECT_CORRUPTION,<bool> Macro,VMA_DEBUG_GLOBAL_MUTEX,<bool> Macro,VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY,<uint64> Macro,VMA_SMALL_HEAP_MAX_SIZE,<uint64> Macro,VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE,<uint64>
Remaining lines contain recorded calls to VMA functions. First columns are always:
Remaining columns are function parameters and output, depending on function name, which can be:
vmaFreeMemory (min format version 1.1)
vmaFreeMemoryPages (min format version: 1.5)
vmaCreateLostAllocation (min format version 1.2)
vmaAllocateMemory (min format version 1.2)
vmaAllocateMemoryPages (min format version 1.5)
vmaAllocateMemoryForBuffer, vmaAllocateMemoryForImage (min format version 1.2)
vmaMapMemory, vmaUnmapMemory (min format version 1.2)
vmaFlushAllocation, vmaInvalidateAllocation (min format version 1.2)
vmaTouchAllocation, vmaGetAllocationInfo (min format version 1.2)
vmaMakePoolAllocationsLost (min format version: 1.2)
vmaResizeAllocation (min format version: 1.4, max format version: 1.5)
vmaDefragmentationBegin (min format version: 1.5)
vmaDefragmentationEnd (min format version: 1.5)
vmaSetPoolName (min format version: 1.7)
0 for false or
1 for true.
Encoded in decimal format.
Encoded in hexadecimal format.
pUserData was a pointer, it is encoded as hexadecimal string. If
VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT was used with the allocation, the string is written as-is. It may contain additional commas. It should not contain end-of-line characters - results are then undefined.
list of (...) (min format version: 1.5)
An ordered sequence of values of some type, separated by single space.
Vulkan Memory Allocator,Calls recording 1,8 Config,Begin VulkanApiVersion,1,1 PhysicalDevice,apiVersion,4198477 PhysicalDevice,driverVersion,8388653 PhysicalDevice,vendorID,4098 PhysicalDevice,deviceID,26751 PhysicalDevice,deviceType,2 PhysicalDevice,deviceName,Radeon RX Vega PhysicalDeviceLimits,maxMemoryAllocationCount,4096 PhysicalDeviceLimits,bufferImageGranularity,1 PhysicalDeviceLimits,nonCoherentAtomSize,128 PhysicalDeviceMemory,HeapCount,3 PhysicalDeviceMemory,Heap,0,size,8304721920 PhysicalDeviceMemory,Heap,0,flags,3 PhysicalDeviceMemory,Heap,1,size,8286175232 PhysicalDeviceMemory,Heap,1,flags,0 PhysicalDeviceMemory,Heap,2,size,268435456 PhysicalDeviceMemory,Heap,2,flags,3 PhysicalDeviceMemory,TypeCount,4 PhysicalDeviceMemory,Type,0,heapIndex,0 PhysicalDeviceMemory,Type,0,propertyFlags,1 PhysicalDeviceMemory,Type,1,heapIndex,1 PhysicalDeviceMemory,Type,1,propertyFlags,6 PhysicalDeviceMemory,Type,2,heapIndex,2 PhysicalDeviceMemory,Type,2,propertyFlags,7 PhysicalDeviceMemory,Type,3,heapIndex,1 PhysicalDeviceMemory,Type,3,propertyFlags,14 Extension,VK_KHR_dedicated_allocation,1 Extension,VK_KHR_bind_memory2,1 Extension,VK_EXT_memory_budget,1 Macro,VMA_DEBUG_ALWAYS_DEDICATED_MEMORY,0 Macro,VMA_DEBUG_ALIGNMENT,1 Macro,VMA_DEBUG_MARGIN,0 Macro,VMA_DEBUG_INITIALIZE_ALLOCATIONS,0 Macro,VMA_DEBUG_DETECT_CORRUPTION,0 Macro,VMA_DEBUG_GLOBAL_MUTEX,0 Macro,VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY,1 Macro,VMA_SMALL_HEAP_MAX_SIZE,1073741824 Macro,VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE,268435456 Config,End 12552,0.000,0,vmaCreateAllocator 12552,0.010,0,vmaCreateImage,0,1,37,128,128,1,1,1,1,1,1,0,8,36,2,0,0,0,0000000000000000,000001D85B8B1A80, 12552,0.010,0,vmaSetAllocationUserData,000001D85B8B1A80,Ala ma kota 12552,0.015,0,vmaCreateImage,0,1,37,128,128,1,1,1,1,0,6,0,0,0,1,0,0,0,0000000000000000,000001D85B8B1620, 12552,0.017,0,vmaDestroyImage,000001D85B8B1A80 12552,0.017,0,vmaCreateBuffer,0,768,1,0,4,2,0,0,0,0000000000000000,000001D85B8B19E0, 12552,0.017,0,vmaCreateBuffer,0,768,130,0,0,1,0,0,0,0000000000000000,000001D85B8B1A80, 12552,0.017,0,vmaCreateBuffer,0,60,1,0,4,2,0,0,0,0000000000000000,000001D85B8B1DA0, 12552,0.017,0,vmaCreateBuffer,0,60,66,0,0,1,0,0,0,0000000000000000,000001D85B8B16C0, 12552,0.017,0,vmaDestroyBuffer,000001D85B8B1DA0 12552,0.017,0,vmaDestroyBuffer,000001D85B8B19E0 12552,0.022,0,vmaCreateImage,0,1,126,1424,704,1,1,1,1,0,32,0,0,0,1,0,0,0,0000000000000000,000001D85B8B1EE0, 12552,0.048,0,vmaDestroyImage,000001D85B8B1EE0 12552,0.053,0,vmaCreateImage,0,1,126,1424,704,1,1,1,1,0,32,0,0,0,1,0,0,0,0000000000000000,000001D85B8B1EE0, 12552,0.662,0,vmaDestroyImage,000001D85B8B1EE0 12552,0.695,0,vmaDestroyImage,000001D85B8B1620 12552,0.695,0,vmaDestroyBuffer,000001D85B8B16C0 12552,0.695,0,vmaDestroyBuffer,000001D85B8B1A80 12552,0.695,0,vmaDestroyAllocator