Parallelism is introduced by running the main thread scheduling child threads for each task so that the tasks execute concurrently while each thread execute the task synchronously.

并行性是通过运行主线程为每一个任务调度执行的子线程而实现的，这样任务就会并发执行，而每一个线程是同步执行任务的。

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For the transfer thread configuration, you also see the maximum number configured to execute concurrently.

对于传输线程配置，还可以看到可以同时执行的最大数量。

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Do code path analysis to see if there is a synchronized block in the code that is blocking requests to execute concurrently.

进行代码路径分析，以查看阻塞请求并发执行的代码中是否存在同步阻塞。

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