It provides correlated information that helps you identify specific problems but with low enough overhead to be used in production environments.
它提供了相关的信息，可以帮助识别特定的问题，但是在生产环境中使用的开销却足够小。
For example, during detailed analysis, you might want to simplify the data gathering and reduce the overhead by focusing the metrics on the classes belonging to one specific application.
例如，在详细分析过程中，您可能希望通过将度量集中于属于一个特定应用程序的类，简化数据收集和减少开销。
Allocation overhead depends on available resources and the performance of a specific JVM and J2EE implementation.
分配开销具体取决于可用的资源和特定JVM的性能以及J2EE实现。
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