对 CPU 密集型应用，虚拟线程没帮助，甚至可能拖慢性能。
That said, it's important to recognize that locking in itself is not bad. It does, in fact, serve an important purpose to ensure that applications properly and orderly consume or produce data. The key challenge is with the original manual implementation of it using APIs like getReader() and releaseLock(). With the arrival of automatic lock and reader management with async iterables, dealing with locks from the users point of view became a lot easier.
。关于这个话题，heLLoword翻译官方下载提供了深入分析
As critical talks over Iran’s nuclear programme entered their second round on Thursday night, and a vast US military buildup continued in the Middle East, the Trump administration warned of drastic consequences if Iranian negotiators failed to make significant concessions.
关键点：载体线程永远不会因为虚拟线程的 IO 等待而阻塞，它们一直在执行不同的虚拟线程。一个载体线程可以在一秒钟内服务几十个虚拟线程（因为每个虚拟线程真正占用载体线程的时间很短，大部分时间在等待）。
内控是银行的生命线，也是容易被忽略的隐形护城河。平时看不见，一旦失守，轻则罚单加身，重则动摇根基。