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[dxvk] Make recycler a ring buffer

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Ensures that recycled objects actually get reused soon. Somewhat
important for memory efficiency in descriptor pools.
This commit is contained in:
Philip Rebohle 2022-06-21 19:14:32 +02:00
parent 384a665700
commit 67d03aabd0
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GPG Key ID: C8CC613427A31C99
1 changed files with 9 additions and 7 deletions
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16
src/dxvk/dxvk_recycler.h
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@ -31,10 +31,10 @@ namespace dxvk {
Rc<T> retrieveObject() { Rc<T> retrieveObject() {
std::lock_guard<dxvk::mutex> lock(m_mutex); std::lock_guard<dxvk::mutex> lock(m_mutex);
if (m_objectId == 0) if (m_get == m_put)
return nullptr; return nullptr;
return m_objects.at(--m_objectId); return std::exchange(m_objects[(m_get++) % N], Rc<T>());
} }
/** /**
@ -48,15 +48,17 @@ namespace dxvk {
void returnObject(const Rc<T>& object) { void returnObject(const Rc<T>& object) {
std::lock_guard<dxvk::mutex> lock(m_mutex); std::lock_guard<dxvk::mutex> lock(m_mutex);
if (m_objectId < N) if (m_put - m_get < N)
m_objects.at(m_objectId++) = object; m_objects[(m_put++) % N] = object;
} }
private: private:
dxvk::mutex m_mutex; dxvk::mutex m_mutex;
std::array<Rc<T>, N> m_objects; std::array<Rc<T>, N> m_objects;
size_t m_objectId = 0;
uint64_t m_get = 0;
uint64_t m_put = 0;
}; };