This overhead is mandated by the spec's reliance on promises for buffer management, completion, and backpressure signals. While some of it is implementation-specific, much of it is unavoidable if you're following the spec as written. For high-frequency streaming – video frames, network packets, real-time data – this overhead is significant.
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returned in case there is no argument or the argument is not a valid
Setup and tests source code, so you can experiment, run tests on your own and compare the results: https://github.com/BinaryIgor/code-examples/tree/master/mongodb-vs-postgresql-performance，推荐阅读夫子获取更多信息
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