A dashboard must display key performance indicators such as the input and output throughputs, number of requests waiting and in process, and average waiting and processing times.

一个用于显示关键性能指示器的仪表板，比如输入和输出吞吐量，在等待和处理中的请求数量，以及平均的等待和处理时间。

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Ajax, as the Web development community well knows, allows you to make asynchronous auxiliary requests to the server and display the resulting output directly on the Web page (see Figure 4).

Web开发社区的人都知道，Ajax允许向服务器发出异步的辅助请求，并直接在网页中显示结果(如图4所示)。

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