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Add infer request queue for tokenizers and allow for optional plugin_…
…config in tokenizer (#651) This improves performance of CB lib when tested within OVMS.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| #pragma once | ||
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| #include <queue> | ||
| #include <mutex> | ||
| #include <future> | ||
| #include <algorithm> | ||
| #include <atomic> | ||
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| namespace ov::genai { | ||
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| // From OVMS: | ||
| // https://github.com/openvinotoolkit/model_server/blob/d73e85cbb8ac1d761754cb2064a00551a9ffc655/src/queue.hpp#L34 | ||
| template <typename T> | ||
| class CircularBufferQueue | ||
| { | ||
| int m_front_idx; | ||
| std::atomic<int> m_back_idx; | ||
| std::vector<int> m_values; | ||
| std::queue<std::promise<int>> m_promises; | ||
| std::vector<T> m_data; | ||
| std::mutex m_front_mut; | ||
| std::mutex m_queue_mutex; | ||
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| public: | ||
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| CircularBufferQueue(size_t length, const std::function<T()>& create_fn) : | ||
| m_values(length), | ||
| m_front_idx{0}, | ||
| m_back_idx{0} { | ||
| std::iota(m_values.begin(), m_values.end(), 0); | ||
| m_data.reserve(length); | ||
| for (size_t i = 0; i < length; i++) { | ||
| m_data.emplace_back(std::move(create_fn())); | ||
| } | ||
| } | ||
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| CircularBufferQueue(const CircularBufferQueue&) = delete; | ||
| CircularBufferQueue(const CircularBufferQueue&&) = delete; | ||
| CircularBufferQueue& operator=(const CircularBufferQueue&) = delete; | ||
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| T& get(int value) { | ||
| return m_data[value]; | ||
| } | ||
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| std::future<int> get_idle() { | ||
| int value; | ||
| std::promise<int> idle_promise; | ||
| std::future<int> idle_future = idle_promise.get_future(); | ||
| std::unique_lock<std::mutex> lk(m_front_mut); | ||
| if (m_values[m_front_idx] < 0) { | ||
| std::unique_lock<std::mutex> queueLock(m_queue_mutex); | ||
| m_promises.push(std::move(idle_promise)); | ||
| } else { | ||
| value = m_values[m_front_idx]; | ||
| m_values[m_front_idx] = -1; | ||
| m_front_idx = (m_front_idx + 1) % m_values.size(); | ||
| lk.unlock(); | ||
| idle_promise.set_value(value); | ||
| } | ||
| return idle_future; | ||
| } | ||
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| void return_to(int value) { | ||
| std::unique_lock<std::mutex> lk(m_queue_mutex); | ||
| if (m_promises.size()) { | ||
| std::promise<int> promise = std::move(m_promises.front()); | ||
| m_promises.pop(); | ||
| lk.unlock(); | ||
| promise.set_value(value); | ||
| return; | ||
| } | ||
| int old_back = m_back_idx.load(); | ||
| while (!m_back_idx.compare_exchange_weak( | ||
| old_back, | ||
| (old_back + 1) % m_values.size(), | ||
| std::memory_order_relaxed)) { | ||
| } | ||
| m_values[old_back] = value; | ||
| } | ||
| }; | ||
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| template <typename T> | ||
| class CircularBufferQueueElementGuard { | ||
| CircularBufferQueue<T>* m_queue; | ||
| int m_value; | ||
| public: | ||
| CircularBufferQueueElementGuard(CircularBufferQueue<T>* queue) : m_queue(queue) { | ||
| m_value = m_queue->get_idle().get(); // blocking until we get the element | ||
| } | ||
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| T& get() { | ||
| return m_queue->get(m_value); | ||
| } | ||
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| ~CircularBufferQueueElementGuard() { | ||
| m_queue->return_to(m_value); | ||
| } | ||
| }; | ||
|
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| } |
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