You can see if your server is running low on physical memory, the number of live threads, and even how long the server has been up and running.

如果服务器是在物理内存上运行，那么您可以看到实时线程数，甚至能够看到服务器的已经运行时间。

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With a LoadTest, you can specify a number of users to simulate (that is, threads) and even provide a timing mechanism for the launching of threads.

使用LoadTest，可以指定要模拟的用户(线程)数量，甚至为这些线程的启动提供计时机制。

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If a thread is in upgradeable mode, and there are no threads waiting to enter write mode, any number of other threads can enter read mode, even if there are threads waiting to enter upgradeable mode.

如果有一个线程处于可升级读模式，并且没有任何线程等待进入写模式，那么任意数量的线程可以进入读模式，即使有线程在等待进入可升级读模式。

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