单击Explain按钮，可以看到每个计数器的详细说明。
Click on the Explain button for a detailed explanation of each counter.
在这个页面还有一个 Reset 按钮能够将计数器的值重置为零。
There is also a Reset button on the page that resets the counter to zero.
请在PerfMon窗口上方的工具栏中单击+按钮，这样会打开一个对话框让您选择要监控的计数器，如图3a所示。
To get going, click on the + button on the toolbar at the top of the PerfMon screen. This brings up a dialog that lets you choose the counters you want to monitor, as in Figure 3a.
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