在例子中,单个请求占用载体线程的总时间其实只有几毫秒(执行非阻塞代码的时间),其他 350ms 都在等待。所以理论上,如果载体线程足够多(比如 Tomcat 默认有 200 个平台线程作为载体),就可以同时处理海量虚拟线程,吞吐量自然暴增。
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