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[dxvk] Tweak descriptor pool numbers

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Increases the descriptor pool size on 64-bit, but also makes
significantly better use of descriptor pool memory in situations
with very high draw counts and many UBO descriptor set updates.
This commit is contained in:
Philip Rebohle 2023-01-20 14:34:46 +01:00
parent 4d0d455895
commit eacb8da9f7
1 changed files with 15 additions and 7 deletions
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22
src/dxvk/dxvk_descriptor.cpp
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@ -288,18 +288,26 @@ namespace dxvk {
return m_vkPools[--m_vkPoolCount];
}
// Deliberately pick a very high number of descriptor sets so that
// we will typically end up using all available pool memory before
// the descriptor set limit becomes the limiting factor.
uint32_t maxSets = m_contextType == DxvkContextType::Primary
? 8192 : 256;
? (env::is32BitHostPlatform() ? 24576u : 49152u)
: (512u);
// Samplers and uniform buffers may be special on some implementations
// so we should allocate space for a reasonable number of both, but
// assume that all other descriptor types share pool memory.
std::array<VkDescriptorPoolSize, 8> pools = {{
{ VK_DESCRIPTOR_TYPE_SAMPLER, maxSets * 2 },
{ VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, maxSets * 2 },
{ VK_DESCRIPTOR_TYPE_SAMPLER, maxSets * 1 },
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, maxSets / 4 },
{ VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, maxSets / 2 },
{ VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, maxSets / 64 },
{ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, maxSets * 4 },
{ VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, maxSets * 1 },
{ VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER, maxSets * 1 },
{ VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER, maxSets / 2 },
{ VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER, maxSets / 64 },
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, maxSets * 1 } }};
{ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, maxSets * 2 },
{ VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, maxSets / 2 },
}};
VkDescriptorPoolCreateInfo info = { VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO };
info.maxSets = maxSets;