Performance Explorer (PEX) is the performance data collector that is used when the most detailed performance data is required for problem determination purposes.

Performance Explorer (PEX)性能数据收集器旨在在需要最详细的性能数据以进行问题诊断时使用。

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From a purely technical point of view (security, performance, user experience, maintainability), Internet Explorer should be nailed right onto Windows with no seams.

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