查询用在PDH函数调用中更新它管理的计数器，因而获取性能数据。
Queries are used within PDH function calls to update the counters it manages, thereby obtaining performance data.
所编写的性能记录拦截器是用来记录每个服务调用的性能统计数据的，它会使用这个拦截点。
A performance-recording interceptor that recorded performance statistics for each service invocation was written to use this interception point.
搜索统计数据：查询操作、搜索器性能和处理时间、方法调用统计、以及对大多常用执行的查询。
SearchStats: Query operations, searcher performance and parsing times, method calls statistics, and most commonly executed queries.
应用程序在一个代码段的前后调用这个函数来使用高性能计数器。
By calling this function at the beginning and end of a section of code, an application essentially USES the counter as a high-resolution timer.
应用程序在一个代码段的前后调用这个函数来使用高性能计数器。
By calling this function at the beginning and end of a section of code, an application essentially USES the counter as a high-resolution timer.
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