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Merge pull request #1637 from FernandoS27/cache
Improved GPU Caches lookup Speed
This commit is contained in:
commit
8a537a2021
1 changed files with 17 additions and 18 deletions
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@ -5,6 +5,7 @@
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#pragma once
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#include <set>
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#include <unordered_map>
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#include <boost/icl/interval_map.hpp>
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#include <boost/range/iterator_range_core.hpp>
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@ -88,29 +89,25 @@ public:
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/// Invalidates everything in the cache
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void InvalidateAll() {
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while (object_cache.begin() != object_cache.end()) {
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Unregister(*object_cache.begin()->second.begin());
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while (interval_cache.begin() != interval_cache.end()) {
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Unregister(*interval_cache.begin()->second.begin());
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}
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}
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protected:
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/// Tries to get an object from the cache with the specified address
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T TryGet(VAddr addr) const {
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const ObjectInterval interval{addr};
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for (auto& pair : boost::make_iterator_range(object_cache.equal_range(interval))) {
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for (auto& cached_object : pair.second) {
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if (cached_object->GetAddr() == addr) {
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return cached_object;
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}
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}
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}
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const auto iter = map_cache.find(addr);
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if (iter != map_cache.end())
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return iter->second;
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return nullptr;
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}
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/// Register an object into the cache
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void Register(const T& object) {
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object->SetIsRegistered(true);
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object_cache.add({GetInterval(object), ObjectSet{object}});
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interval_cache.add({GetInterval(object), ObjectSet{object}});
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map_cache.insert({object->GetAddr(), object});
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rasterizer.UpdatePagesCachedCount(object->GetAddr(), object->GetSizeInBytes(), 1);
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}
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@ -118,13 +115,13 @@ protected:
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void Unregister(const T& object) {
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object->SetIsRegistered(false);
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rasterizer.UpdatePagesCachedCount(object->GetAddr(), object->GetSizeInBytes(), -1);
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// Only flush if use_accurate_gpu_emulation is enabled, as it incurs a performance hit
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if (Settings::values.use_accurate_gpu_emulation) {
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FlushObject(object);
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}
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object_cache.subtract({GetInterval(object), ObjectSet{object}});
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interval_cache.subtract({GetInterval(object), ObjectSet{object}});
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map_cache.erase(object->GetAddr());
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}
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/// Returns a ticks counter used for tracking when cached objects were last modified
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@ -141,7 +138,7 @@ private:
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std::vector<T> objects;
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const ObjectInterval interval{addr, addr + size};
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for (auto& pair : boost::make_iterator_range(object_cache.equal_range(interval))) {
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for (auto& pair : boost::make_iterator_range(interval_cache.equal_range(interval))) {
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for (auto& cached_object : pair.second) {
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if (!cached_object) {
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continue;
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@ -167,15 +164,17 @@ private:
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}
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using ObjectSet = std::set<T>;
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using ObjectCache = boost::icl::interval_map<VAddr, ObjectSet>;
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using ObjectInterval = typename ObjectCache::interval_type;
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using ObjectCache = std::unordered_map<VAddr, T>;
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using IntervalCache = boost::icl::interval_map<VAddr, ObjectSet>;
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using ObjectInterval = typename IntervalCache::interval_type;
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static auto GetInterval(const T& object) {
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return ObjectInterval::right_open(object->GetAddr(),
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object->GetAddr() + object->GetSizeInBytes());
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}
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ObjectCache object_cache; ///< Cache of objects
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u64 modified_ticks{}; ///< Counter of cache state ticks, used for in-order flushing
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ObjectCache map_cache;
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IntervalCache interval_cache; ///< Cache of objects
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u64 modified_ticks{}; ///< Counter of cache state ticks, used for in-order flushing
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VideoCore::RasterizerInterface& rasterizer;
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};
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