高级调优：第二种高级调优参数通常与特定的场景相关，且常用于发掘系统的最大性能。

Advanced tuning: This secondary group of advanced tuning parameters are generally specific to a certain scenario and are often used to squeak the absolute most performance out of a system.

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堆调优涉及两个参数：堆的初始大小和最大大小。

Heap tuning involves two parameters: the initial size of the heap and its maximum size.

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限制进入环境的请求可以对最大工作负载调优并提供良好的用户体验。

Gating requests into the environment tunes the maximum workload, and provides a positive user experience.

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