Jason Ekstrand
baf4802e3e
Inc520f4dec9, we chose to align the sizes of descriptor set buffers to 32 bytes. We have to align the descriptor set buffer to 32B so that it's valid for using with push constants. We align the size as well so we don't leave lots of holes with util_vma_heap_alloc. Unfortunately, we were only aligning it for alloc and not for free so we were still creating piles of holes when we delete descriptor sets. This causes terrible perf for the allocator once we've deleted piles of descriptor sets. This commit reworks the code so that we align the descriptor set buffer size to 32B for both alloc and free. The result is that it takes the new crucible vkResetDescriptorPool from 104.567719 to 2.898354 seconds. Fixes:c520f4dec9"anv: Add a concept of a descriptor buffer" Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110497 Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
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