低编译开销更容易被反复执行热代码带来的性能优势掩盖。
Low compilation overhead is maintained that can be more easily hidden behind the performance benefit from repeatedly executing the hot code.
在时间敏感型代码中反复使用反射类可能导致持续不断的类加载活动，这会引起延迟。
Repeated use of the reflection classes in timing-sensitive code can result in ongoing class-loading activity that introduces delays.
覆盖率分析也可以帮您找到测试用例是否有冗余：测试在代码的同一路径下反复运行，导致了不必要的时间延迟。
Coverage analysis also helps find out if there are any redundant test cases: tests that exercise the same path in the code over and over again, causing unnecessary delays.
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