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Avoid small memory heaps when allocating memory to reduce chance of OOM

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baldurk
2020-03-18 14:41:10 +00:00
parent abda2c885b
commit 9991f216bb
1 changed files with 19 additions and 0 deletions
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renderdoc/driver/vulkan/vk_memory.cpp
+19
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@@ -241,6 +241,25 @@ MemoryAllocation WrappedVulkan::AllocateMemoryForResource(bool buffer, VkMemoryR
uint32_t memoryTypeIndex = 0;
// Upload heaps are sometimes limited in size. To prevent OOM issues, deselect any memory types
// corresponding to a small heap (<= 512MB) if there are other memory types available.
for(uint32_t m = 0; m < 32; m++)
{
if(mrq.memoryTypeBits & (1U << m))
{
uint32_t heap = m_PhysicalDeviceData.memProps.memoryTypes[m].heapIndex;
if(m_PhysicalDeviceData.memProps.memoryHeaps[heap].size <= 512 * 1024 * 1024)
{
if(mrq.memoryTypeBits > (1U << m))
{
RDCDEBUG("Avoiding memory type %u due to small heap size (%llu)", i,
m_PhysicalDeviceData.memProps.memoryHeaps[heap].size);
mrq.memoryTypeBits &= ~(1U << m);
}
}
}
}
switch(ret.type)
{
case MemoryType::Upload: memoryTypeIndex = GetUploadMemoryIndex(mrq.memoryTypeBits); break;