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Use a linear allocator for most per-execution GPU allocations

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Currently we heavily thrash the heap each draw, with malloc/free taking up about 10% of GPFIFOs execution time. Using a linear allocator for the main offenders of buffer usage callbacks and index/vertex state helps to reduce this to about 4%
This commit is contained in:
Billy Laws
2022-07-31 13:41:28 +01:00
parent 70eec5a414
commit 683cd594ad
6 changed files with 22 additions and 20 deletions
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6
app/src/main/cpp/skyline/gpu/buffer.h
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@ -6,6 +6,7 @@
#include <unordered_set>
#include <boost/functional/hash.hpp>
#include <common/lockable_shared_ptr.h>
#include <common/linear_allocator.h>
#include <nce.h>
#include <gpu/tag_allocator.h>
#include "megabuffer.h"
@ -101,7 +102,8 @@ namespace skyline::gpu {
LockableSharedPtr<Buffer> buffer;
const Buffer::BufferViewStorage *view;
bool attached{};
std::function<void(const BufferViewStorage &, const std::shared_ptr<Buffer> &)> usageCallback;
using UsageCallback = std::function<void(const BufferViewStorage &, const std::shared_ptr<Buffer> &)>;
std::optional<std::vector<UsageCallback, LinearAllocator<UsageCallback>>> usageCallbacks;
std::list<BufferDelegate *>::iterator iterator;
BufferDelegate(std::shared_ptr<Buffer> buffer, const Buffer::BufferViewStorage *view);
@ -405,7 +407,7 @@ namespace skyline::gpu {
* @note The callback will be automatically called the first time after registration
* @note The view **must** be locked prior to calling this
*/
void RegisterUsage(const std::shared_ptr<FenceCycle> &cycle, const std::function<void(const Buffer::BufferViewStorage &, const std::shared_ptr<Buffer> &)> &usageCallback);
void RegisterUsage(LinearAllocatorState<> &allocator, const std::shared_ptr<FenceCycle> &cycle, Buffer::BufferDelegate::UsageCallback usageCallback);
/**
* @brief Reads data at the specified offset in the view