Commit f4e71351b3bf462ab58f3d698ae1ab1355eca736
2023-03-14T14:55:04
Vulkan: Switch acquireAndUpdate to use Buddy pool Based on survey of all app traces we have, it is common that we end up with BufferVk::acquireAndUpdate even though the buffer was created with STATIC usage. This is mostly due to glBufferSubData call on the STATIC usage buffers and on ARM we most likely end up with acquireAndUpdate. Similarly, we also getting into ghostMappedBuffer and mapRangeImpl with STATIC usage buffers, even though with less app traces. Since the usage pattern usually repeats, using generic allocation algorithm has performance penalty. This CL moves these usage to buddy algorithm to ensure alloc/free are fast. This CL and previous CL crrev.com/c/4327290, reduces efootball_pes-2021 frame time from 4.2 ms to 2.87 ms, achieves parity with native GLES on pixel 7 pro. Bug: b/271915956 Change-Id: I56e0195181c77a3130513c74ec8a5075b2b29ea4 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4321870 Commit-Queue: Charlie Lao <cclao@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>