该容器为管理资源、事务和并行性之类的内容提供了自动支持，但是也会为应用程序引入大量负载负荷。
The container provides automatic support for managing things like resources, transactions, and concurrency but can also introduce substantial overhead in your applications.
通常情况下没有进行复位而收集的数据不是很有用，因为计数器的时间跨度较长，包括随着负荷起伏跌宕截然不同的工作负载。
Typically the data collected without a reset is not very useful because the counters span a longer period of time, including drastically different workloads along peaks and valleys in load.
但是如果CPU资源由于非常密集的工作负载而满负荷，则添加更多工作线程不会改进总体系统吞吐量。
But if the CPU resource is saturated because of very intensive workload, then adding more worker threads would not improve the overall system throughput.
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