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Buddy allocator - more coding.

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This commit is contained in:
Adam Sawicki 2018-09-03 13:40:42 +02:00
parent 6d9d718343
commit a83793a63e
2 changed files with 362 additions and 24 deletions
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69
src/Tests.cpp
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@ -4079,15 +4079,82 @@ static void PerformPoolTests(FILE* file)
}
}
static void BasicTestBuddyAllocator()
{
wprintf(L"Basic test buddy allocator\n");
RandomNumberGenerator rand{76543};
VkBufferCreateInfo sampleBufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
sampleBufCreateInfo.size = 1024; // Whatever.
sampleBufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
VmaAllocationCreateInfo sampleAllocCreateInfo = {};
sampleAllocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY;
VmaPoolCreateInfo poolCreateInfo = {};
VkResult res = vmaFindMemoryTypeIndexForBufferInfo(g_hAllocator, &sampleBufCreateInfo, &sampleAllocCreateInfo, &poolCreateInfo.memoryTypeIndex);
assert(res == VK_SUCCESS);
poolCreateInfo.blockSize = 1024 * 1024;
poolCreateInfo.flags = VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT;
poolCreateInfo.minBlockCount = poolCreateInfo.maxBlockCount = 1;
VmaPool pool = nullptr;
res = vmaCreatePool(g_hAllocator, &poolCreateInfo, &pool);
assert(res == VK_SUCCESS);
VkBufferCreateInfo bufCreateInfo = sampleBufCreateInfo;
VmaAllocationCreateInfo allocCreateInfo = {};
allocCreateInfo.pool = pool;
std::vector<BufferInfo> bufInfo;
BufferInfo newBufInfo;
VmaAllocationInfo allocInfo;
bufCreateInfo.size = 1024 * 256;
res = vmaCreateBuffer(g_hAllocator, &bufCreateInfo, &allocCreateInfo,
&newBufInfo.Buffer, &newBufInfo.Allocation, &allocInfo);
assert(res == VK_SUCCESS);
bufInfo.push_back(newBufInfo);
bufCreateInfo.size = 1024 * 512;
res = vmaCreateBuffer(g_hAllocator, &bufCreateInfo, &allocCreateInfo,
&newBufInfo.Buffer, &newBufInfo.Allocation, &allocInfo);
assert(res == VK_SUCCESS);
bufInfo.push_back(newBufInfo);
bufCreateInfo.size = 1024 * 128;
res = vmaCreateBuffer(g_hAllocator, &bufCreateInfo, &allocCreateInfo,
&newBufInfo.Buffer, &newBufInfo.Allocation, &allocInfo);
assert(res == VK_SUCCESS);
bufInfo.push_back(newBufInfo);
SaveAllocatorStatsToFile(L"BuddyTest01.json");
// Destroy the buffers in random order.
while(!bufInfo.empty())
{
const size_t indexToDestroy = rand.Generate() % bufInfo.size();
const BufferInfo& currBufInfo = bufInfo[indexToDestroy];
vmaDestroyBuffer(g_hAllocator, currBufInfo.Buffer, currBufInfo.Allocation);
bufInfo.erase(bufInfo.begin() + indexToDestroy);
}
vmaDestroyPool(g_hAllocator, pool);
}
void Test()
{
wprintf(L"TESTING:\n");
if(false)
if(true)
{
// # Temporarily insert custom tests here
// ########################################
// ########################################
BasicTestBuddyAllocator();
return;
}