/** * @brief: start trim thread. */ void TrimRun(); /** * @brief: stop trim thread. */ void TrimStop(); private: curve::common::Thread backEndThread_; curve::common::Atomic start aync upload thread. */ void AsyncUploadRun(); /** * @brief: stop aync upload thread. */ void AsyncUploadStop(); private: curve::common::Thread backEndThread_;

read/write requests (limited to one per * thread), asynchronous read requests (Linux's io_submit(2) * call actually blocks, so these are also limited to one per * thread). */ unsigned max_background; take some time to complete, and to * adjust its algorithms accordingly (e.g. by putting a waiting thread * to sleep instead of using a busy-loop). */ unsigned congestion_threshold; /** * When com/p/eb8b2a679537 https://zhuanlan.zhihu.com/p/44267768 https://sourceforge.net/p/fuse/mailman/fuse-devel/thread/CAGRbiNS5YL5vjV_XNhv3RL-ub3VbwNTwmbHGMOgcpvnnnUpmng%40mail.gmail.com/ https://unix.stackexchange

performance framework • Use bthread (M bthread map N pthread) for scalability and performance on Multi-thread CPU • Lock free queue design • Memory zero copy design • Cloud native supportCloud native for

blockSize_; uint64_t chunkSize_; std::string metaServerEps_; std::string allocateServerEps_; Thread bgFlushThread_; std::atomic toStop_; std::shared_ptr fsCacheManager_; std::shared_ptr inodeManager_;

Grafana——开源的度量分析和可视化工具， curve利用它进行数据可视化展示。 20/33监控指标（metric）的生成 Curve使用brpc内置的bvar计数器类库，来生成监控指标，其特点是:  thread local存储，减少了cache bouncing，性能开销极小；  支持在 brpc server 服务的端口上以web portal的方式导出和查询监控指标： 常用的bvar数据类型: