... 2.14螺尾washout thread;vanish thread 2.15有效螺纹useful thread 3.1.1螺纹牙型form of thread ...
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On the other hand, if the lock is held for a longer time, spinning is wasteful as the spinning thread consumes CPU without doing anything useful.
另一方面，如果锁被占有很长时间，那么自旋的线程只会消耗CPU而不做任何有用的工作，因此带来浪费。
The thread pool is a useful tool for organizing server applications.
线程池是组织服务器应用程序的有用工具。
However, only one thread is running in this test run, so it's not especially useful for comparative analysis.
然而，在这个测试运行中只运行了一个线程，所以比较分析的用处并不大。
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