tqchen commented on a change in pull request #7833:
URL: https://github.com/apache/tvm/pull/7833#discussion_r612757068
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File path: src/runtime/vulkan/vulkan.cc
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@@ -60,35 +91,21 @@ class VulkanThreadEntry {
pool.reset();
streams_.clear();
for (const auto& kv : staging_buffers_) {
- if (!kv.second) {
- continue;
- }
- auto& buf = *(kv.second);
- if (buf.host_addr != nullptr) {
- vkUnmapMemory(buf.device, buf.memory);
- }
- if (buf.memory != VK_NULL_HANDLE) {
- vkFreeMemory(buf.device, buf.memory, nullptr);
- }
- if (buf.buffer != VK_NULL_HANDLE) {
- vkDestroyBuffer(buf.device, buf.buffer, nullptr);
- }
+ DeleteHostVisibleBuffer(kv.second.get());
Review comment:
The main point is that we only need to synchronize when re-allocation
happens. When we get to a stable state of the UBO staging buffer being big
enough, then we won't need to synchronize.
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