Bigfoot/Benchmarks/Engine/AssetContainer/AssetContainer.cpp

@@ -0,0 +1,164 @@
+#include <Engine/Asset/AssetContainer.hpp>
+
+#include <AssetsForBenchmarking/Asset/BenchmarkAsset.hpp>
+
+#include <effolkronium/random.hpp>
+
+#include <benchmark/benchmark.h>
+
+#include <cstdint>
+
+namespace Bigfoot
+{
+#ifdef BIGFOOT_TOOLMODE
+namespace
+{
+using Random = effolkronium::random_static;
+}   // namespace
+
+/****************************************************************************************/
+
+void Insert(benchmark::State& state)
+{
+    const auto count = static_cast<std::uint32_t>(state.range(0));
+
+    for (auto _: state)
+    {
+        AssetContainer<BenchmarkAsset> container;
+        for (std::uint32_t i = 0; i < count; ++i)
+        {
+            benchmark::DoNotOptimize(container.Insert());
+        }
+        benchmark::DoNotOptimize(container);
+        benchmark::ClobberMemory();
+    }
+
+    state.SetItemsProcessed(state.iterations() * count);
+}
+BENCHMARK(Insert)->Name("AssetContainer/Insert")->Arg(512)->Arg(8192)->Arg(131072);
+
+/****************************************************************************************/
+
+void Get(benchmark::State& state)
+{
+    const auto count = static_cast<std::uint32_t>(state.range(0));
+
+    AssetContainer<BenchmarkAsset> container;
+    eastl::vector<SlotMapKey<>> keys;
+    keys.reserve(count);
+    for (std::uint32_t i = 0; i < count; ++i)
+    {
+        keys.push_back(container.Insert());
+    }
+    Random::shuffle(keys);
+
+    for (auto _: state)
+    {
+        std::uint64_t sum = 0;
+        for (const SlotMapKey<> key: keys)
+        {
+            if (const BenchmarkAsset* const asset = container.Get(key))
+            {
+                sum += asset->GetHeader().type_id;
+            }
+        }
+        benchmark::DoNotOptimize(sum);
+    }
+
+    state.SetItemsProcessed(state.iterations() * count);
+}
+BENCHMARK(Get)->Name("AssetContainer/Get")->Arg(512)->Arg(8192)->Arg(131072);
+
+/****************************************************************************************/
+
+void Has(benchmark::State& state)
+{
+    const auto count = static_cast<std::uint32_t>(state.range(0));
+
+    AssetContainer<BenchmarkAsset> container;
+    eastl::vector<UUID> uuids;
+    uuids.reserve(count);
+    for (std::uint32_t i = 0; i < count; ++i)
+    {
+        const SlotMapKey<> key = container.Insert();
+        uuids.push_back(container.Get(key)->GetHeader().uuid);
+    }
+    Random::shuffle(uuids);
+
+    for (auto _: state)
+    {
+        bool result = true;
+        for (const UUID& uuid: uuids)
+        {
+            result = result && container.Has(uuid);
+        }
+        benchmark::DoNotOptimize(result);
+    }
+
+    state.SetItemsProcessed(state.iterations() * count);
+}
+BENCHMARK(Has)->Name("AssetContainer/Has")->Arg(512)->Arg(8192)->Arg(131072);
+
+/****************************************************************************************/
+
+void AcquireContainerHandle(benchmark::State& state)
+{
+    const auto count = static_cast<std::uint32_t>(state.range(0));
+
+    AssetContainer<BenchmarkAsset> container;
+    eastl::vector<UUID> uuids;
+    uuids.reserve(count);
+    for (std::uint32_t i = 0; i < count; ++i)
+    {
+        const SlotMapKey<> key = container.Insert();
+        uuids.push_back(container.Get(key)->GetHeader().uuid);
+    }
+    Random::shuffle(uuids);
+
+    for (auto _: state)
+    {
+        std::uint64_t sum = 0;
+        for (const UUID& uuid: uuids)
+        {
+            sum += container.AcquireContainerHandle(uuid)->GetHardRefCount();
+        }
+        benchmark::DoNotOptimize(sum);
+    }
+
+    state.SetItemsProcessed(state.iterations() * count);
+}
+BENCHMARK(AcquireContainerHandle)->Name("AssetContainer/AcquireContainerHandle")->Arg(512)->Arg(8192)->Arg(131072);
+
+/****************************************************************************************/
+
+void Remove(benchmark::State& state)
+{
+    const auto count = static_cast<std::uint32_t>(state.range(0));
+
+    AssetContainer<BenchmarkAsset> container;
+    eastl::vector<UUID> uuids;
+    uuids.reserve(count);
+
+    for (auto _: state)
+    {
+        state.PauseTiming();
+        uuids.clear();
+        for (std::uint32_t i = 0; i < count; ++i)
+        {
+            const SlotMapKey<> key = container.Insert();
+            uuids.push_back(container.Get(key)->GetHeader().uuid);
+        }
+        Random::shuffle(uuids);
+        state.ResumeTiming();
+
+        for (const UUID& uuid: uuids)
+        {
+            container.Remove(uuid);
+        }
+    }
+
+    state.SetItemsProcessed(state.iterations() * count);
+}
+BENCHMARK(Remove)->Name("AssetContainer/Remove")->Arg(512)->Arg(8192)->Arg(131072);
+#endif
+}   // namespace Bigfoot

Bigfoot/Benchmarks/Engine/Reference/Reference.cpp

@@ -0,0 +1,128 @@
+#include <Engine/Asset/AssetLibrary.hpp>
+#include <Engine/Asset/Reference.hpp>
+
+#include <AssetsForBenchmarking/Asset/BenchmarkAsset.hpp>
+
+#include <EASTL/vector.h>
+
+#include <benchmark/benchmark.h>
+
+#include <cstddef>
+#include <utility>
+
+namespace Bigfoot
+{
+#ifdef BIGFOOT_TOOLMODE
+template<template<class> class REFERENCE>
+void Construct(benchmark::State& state)
+{
+    AssetLibrary library;
+    AssetContainer<BenchmarkAsset> container;
+    std::ignore = library.Insert(&container);
+    ScopedActiveAssetLibrary scopedLibrary {&library};
+
+    const SlotMapKey<> key = container.Insert();
+    const UUID uuid = container.Get(key)->GetHeader().uuid;
+
+    for (auto _: state)
+    {
+        REFERENCE<BenchmarkAsset> reference {uuid};
+        benchmark::DoNotOptimize(reference);
+    }
+
+    state.SetItemsProcessed(state.iterations());
+}
+BENCHMARK_TEMPLATE(Construct, HardReference)->Name("Reference/HardReference/Construct");
+BENCHMARK_TEMPLATE(Construct, SoftReference)->Name("Reference/SoftReference/Construct");
+
+/****************************************************************************************/
+
+template<template<class> class REFERENCE>
+void Get(benchmark::State& state)
+{
+    AssetLibrary library;
+    AssetContainer<BenchmarkAsset> container;
+    std::ignore = library.Insert(&container);
+    ScopedActiveAssetLibrary scopedLibrary {&library};
+
+    const SlotMapKey<> key = container.Insert();
+    const UUID uuid = container.Get(key)->GetHeader().uuid;
+
+    REFERENCE<BenchmarkAsset> reference {uuid};
+
+    for (auto _: state)
+    {
+        benchmark::DoNotOptimize(reference.Get());
+    }
+
+    state.SetItemsProcessed(state.iterations());
+}
+BENCHMARK_TEMPLATE(Get, HardReference)->Name("Reference/HardReference/Get");
+BENCHMARK_TEMPLATE(Get, SoftReference)->Name("Reference/SoftReference/Get");
+
+/****************************************************************************************/
+
+template<template<class> class REFERENCE>
+void Copy(benchmark::State& state)
+{
+    AssetLibrary library;
+    AssetContainer<BenchmarkAsset> container;
+    std::ignore = library.Insert(&container);
+    ScopedActiveAssetLibrary scopedLibrary {&library};
+
+    const SlotMapKey<> key = container.Insert();
+    const UUID uuid = container.Get(key)->GetHeader().uuid;
+
+    REFERENCE<BenchmarkAsset> reference {uuid};
+
+    for (auto _: state)
+    {
+        REFERENCE<BenchmarkAsset> copy {reference};
+        benchmark::DoNotOptimize(copy);
+    }
+
+    state.SetItemsProcessed(state.iterations());
+}
+BENCHMARK_TEMPLATE(Copy, HardReference)->Name("Reference/HardReference/Copy");
+BENCHMARK_TEMPLATE(Copy, SoftReference)->Name("Reference/SoftReference/Copy");
+
+/****************************************************************************************/
+
+template<template<class> class REFERENCE>
+void Move(benchmark::State& state)
+{
+    AssetLibrary library;
+    AssetContainer<BenchmarkAsset> container;
+    std::ignore = library.Insert(&container);
+    ScopedActiveAssetLibrary scopedLibrary {&library};
+
+    const SlotMapKey<> key = container.Insert();
+    const UUID uuid = container.Get(key)->GetHeader().uuid;
+
+    constexpr std::size_t BATCH_SIZE = 128;
+    eastl::vector<REFERENCE<BenchmarkAsset>> batch;
+    batch.reserve(BATCH_SIZE);
+
+    for (auto _: state)
+    {
+        state.PauseTiming();
+        batch.clear();
+        for (std::size_t i = 0; i < BATCH_SIZE; ++i)
+        {
+            batch.emplace_back(uuid);
+        }
+        state.ResumeTiming();
+
+        for (REFERENCE<BenchmarkAsset>& reference: batch)
+        {
+            REFERENCE<BenchmarkAsset> moved {std::move(reference)};
+            benchmark::DoNotOptimize(moved);
+        }
+    }
+
+    state.SetItemsProcessed(state.iterations() * BATCH_SIZE);
+}
+BENCHMARK_TEMPLATE(Move, HardReference)->Name("Reference/HardReference/Move");
+BENCHMARK_TEMPLATE(Move, SoftReference)->Name("Reference/SoftReference/Move");
+#endif
+}   // namespace Bigfoot

Bigfoot/Sources/Engine/Include/Engine/Asset/AssetContainer.hpp

@@ -164,7 +164,7 @@ class AssetContainerBase
     [[nodiscard]]
     ContainerHandle* AcquireContainerHandle(const UUID& p_uuid)
     {
-        return m_handles.Get(GetOrCreateEntry(p_uuid).m_handleSlotKey);
+        return GetOrCreateEntry(p_uuid).m_handle;
     }
 
     /*
@@ -174,7 +174,7 @@ class AssetContainerBase
      */
     virtual void Remove(const UUID& p_uuid)
     {
-        if (Entry* entry = FindEntry(p_uuid); entry != nullptr && entry->m_handleSlotKey.Valid())
+        if (Entry* entry = FindEntry(p_uuid); entry != nullptr)
         {
             m_handles.Remove(entry->m_handleSlotKey);
             m_uuidToEntry.erase(p_uuid);
@@ -195,6 +195,11 @@ class AssetContainerBase
          * SlotMapKey to the asset
          */
         SlotMapKey m_assetSlotKey;
+
+        /*
+         * The handle itself, cached to avoid a SlotMap lookup on every access
+         */
+        ContainerHandle* m_handle = nullptr;
     };
 
     AssetContainerBase() = default;
@@ -241,23 +246,12 @@ class AssetContainerBase
         if (inserted)
         {
             it->second.m_handleSlotKey = m_handles.Insert();
+            it->second.m_handle = m_handles.Get(it->second.m_handleSlotKey);
         }
 
         return it->second;
     }
 
-    /*
-     * Get a ContainerHandle
-     *
-     * \param p_handleSlotKey The key to the container
-     * \return The container
-     */
-    [[nodiscard]]
-    ContainerHandle& FindContainerHandle(const SlotMapKey p_handleSlotKey)
-    {
-        return *m_handles.Get(p_handleSlotKey);
-    }
-
   private:
     /*
      * HandleContainers
@@ -267,7 +261,7 @@ class AssetContainerBase
     /*
      * Every Asset added to the map
      */
-    ankerl::unordered_dense::segmented_map<UUID, Entry> m_uuidToEntry;
+    ankerl::unordered_dense::map<UUID, Entry> m_uuidToEntry;
 };
 
 /****************************************************************************************/
@@ -303,7 +297,7 @@ class AssetContainer: public AssetContainerBase
         else
         {
             entry.m_assetSlotKey = slotKey;
-            FindContainerHandle(entry.m_handleSlotKey).SetAsset(asset);
+            entry.m_handle->SetAsset(asset);
         }
 
         return slotKey;
@@ -342,7 +336,7 @@ class AssetContainer: public AssetContainerBase
     {
         if (Entry* entry = FindEntry(p_uuid); entry != nullptr && entry->m_assetSlotKey.Valid())
         {
-            FindContainerHandle(entry->m_handleSlotKey).SetAsset(nullptr);
+            entry->m_handle->SetAsset(nullptr);
             m_assets.Remove(entry->m_assetSlotKey);
             entry->m_assetSlotKey = SlotMapKey {};
         }

Bigfoot/Sources/System/Include/System/UUID/UUID.hpp

@@ -9,6 +9,8 @@
 #include <fmt/format.h>
 #include <uuid.h>
 
+#include <ankerl/unordered_dense.h>
+
 namespace Bigfoot
 {
 class UUID
@@ -112,6 +114,23 @@ struct std::hash<Bigfoot::UUID>
     }
 };
 
+/****************************************************************************************/
+
+template<>
+struct ankerl::unordered_dense::hash<Bigfoot::UUID>
+{
+    using is_avalanching = void;
+
+    [[nodiscard]]
+    std::uint64_t operator()(const Bigfoot::UUID& p_uuid) const noexcept
+    {
+        const auto bytes = p_uuid.ToBytes();
+        return detail::wyhash::hash(bytes.data(), bytes.size());
+    }
+};
+
+/****************************************************************************************/
+
 template<>
 struct fmt::formatter<Bigfoot::UUID>
 {