kaka11chen commented on code in PR #49671: URL: https://github.com/apache/doris/pull/49671#discussion_r2041300767
########## be/src/vec/exec/executor/time_sharing/time_sharing_task_executor.h: ########## @@ -0,0 +1,183 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +#pragma once + +#include <atomic> +#include <chrono> +#include <condition_variable> +#include <memory> +#include <mutex> +#include <optional> +#include <queue> +#include <thread> +#include <unordered_map> +#include <unordered_set> +#include <vector> + +#include "bvar/latency_recorder.h" +#include "util/threadpool.h" +#include "vec/exec/executor/listenable_future.h" +#include "vec/exec/executor/task_executor.h" +#include "vec/exec/executor/ticker.h" +#include "vec/exec/executor/time_sharing/multilevel_split_queue.h" +#include "vec/exec/executor/time_sharing/prioritized_split_runner.h" + +namespace doris { +namespace vectorized { + +/** + * ThreadSafe + */ +class TimeSharingTaskExecutor : public TaskExecutor { + ENABLE_FACTORY_CREATOR(TimeSharingTaskExecutor); + +public: + struct ThreadConfig { + std::string thread_name; + int max_thread_num; + int min_thread_num; + int max_queue_size = 0; + std::weak_ptr<CgroupCpuCtl> cgroup_cpu_ctl; + }; + + TimeSharingTaskExecutor(ThreadConfig config, int min_concurrency, + int guaranteed_concurrency_per_task, int max_concurrency_per_task, + std::shared_ptr<Ticker> ticker, + std::chrono::milliseconds stuck_split_warning_threshold = + std::chrono::milliseconds(60000), + std::shared_ptr<MultilevelSplitQueue> split_queue = nullptr); + + ~TimeSharingTaskExecutor() override; + + Status init() override; + + Status start() override; + void stop() override; + + Result<std::shared_ptr<TaskHandle>> create_task( + const TaskId& task_id, std::function<double()> utilization_supplier, + int initial_split_concurrency, + std::chrono::nanoseconds split_concurrency_adjust_frequency, + std::optional<int> max_concurrency_per_task) override; + + Status add_task(const TaskId& task_id, std::shared_ptr<TaskHandle> task_handle) override; + + Status remove_task(std::shared_ptr<TaskHandle> task_handle) override; + + Result<std::vector<SharedListenableFuture<Void>>> enqueue_splits( + std::shared_ptr<TaskHandle> task_handle, bool intermediate, + const std::vector<std::shared_ptr<SplitRunner>>& splits) override; + + size_t waiting_splits_size() const { return _waiting_splits->size(); } + + size_t intermediate_splits_size() const { + std::lock_guard<std::mutex> guard(_mutex); + return _intermediate_splits.size(); + } + + size_t running_splits_size() const { return _running_splits.size(); } + + size_t blocked_splits_size() const { return _blocked_splits.size(); } + + size_t total_splits_size() const { + std::lock_guard<std::mutex> guard(_mutex); + return _all_splits.size(); + } + + size_t tasks_size() const { + std::lock_guard<std::mutex> guard(_mutex); + return _tasks.size(); + } + + int64_t completed_tasks_level0() const { return _completed_tasks_per_level[0]; } + + int64_t completed_tasks_level1() const { return _completed_tasks_per_level[1]; } + + int64_t completed_tasks_level2() const { return _completed_tasks_per_level[2]; } + + int64_t completed_tasks_level3() const { return _completed_tasks_per_level[3]; } + + int64_t completed_tasks_level4() const { return _completed_tasks_per_level[4]; } + + int64_t completed_splits_level0() const { return _completed_splits_per_level[0]; } + + int64_t completed_splits_level1() const { return _completed_splits_per_level[1]; } + + int64_t completed_splits_level2() const { return _completed_splits_per_level[2]; } + + int64_t completed_splits_level3() const { return _completed_splits_per_level[3]; } + + int64_t completed_splits_level4() const { return _completed_splits_per_level[4]; } + + int64_t running_tasks_level0() const { return _get_running_tasks_for_level(0); } + + int64_t running_tasks_level1() const { return _get_running_tasks_for_level(1); } + + int64_t running_tasks_level2() const { return _get_running_tasks_for_level(2); } + + int64_t running_tasks_level3() const { return _get_running_tasks_for_level(3); } + + int64_t running_tasks_level4() const { return _get_running_tasks_for_level(4); } + + ThreadPool* thread_pool() const { return _thread_pool.get(); }; + +private: + Status _add_runner_thread(); + void _schedule_task_if_necessary(std::shared_ptr<TimeSharingTaskHandle> task_handle, + std::lock_guard<std::mutex>& guard); + void _add_new_entrants(std::lock_guard<std::mutex>& guard); + void _start_intermediate_split(std::shared_ptr<PrioritizedSplitRunner> split, + std::lock_guard<std::mutex>& guard); + void _start_split(std::shared_ptr<PrioritizedSplitRunner> split, + std::lock_guard<std::mutex>& guard); + std::shared_ptr<PrioritizedSplitRunner> _poll_next_split_worker( + std::lock_guard<std::mutex>& guard); + void _record_leaf_splits_size(std::lock_guard<std::mutex>& guard); + void _split_finished(std::shared_ptr<PrioritizedSplitRunner> split, const Status& status); + void _interrupt(); + + int64_t _get_running_tasks_for_level(int level) const; + + std::unique_ptr<ThreadPool> _thread_pool; + ThreadConfig _thread_config; + const int _min_concurrency; + const int _guaranteed_concurrency_per_task; + const int _max_concurrency_per_task; + std::shared_ptr<Ticker> _ticker; + const std::chrono::milliseconds _stuck_split_warning_threshold; + std::shared_ptr<MultilevelSplitQueue> _waiting_splits; + + mutable std::mutex _mutex; + std::condition_variable _condition; + std::atomic<bool> _stopped {false}; + + std::unordered_map<TaskId, std::shared_ptr<TimeSharingTaskHandle>> _tasks; + + std::unordered_set<std::shared_ptr<PrioritizedSplitRunner>> _all_splits; + std::unordered_set<std::shared_ptr<PrioritizedSplitRunner>> _intermediate_splits; Review Comment: yes. It's not a leaf splits(scan splits), its an exchange node splits. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
