因此，重要的是要通过性能测试来定义和检验响应时间目标和实际延迟时间。
Thus, it is important that response time goals and actual latency times be defined and validated via performance tests.
伪事实表将会用在连接中代替实际的事实表，从而提升单独从维度查询的响应时间。
The fake fact table will be used in the joins instead of the actual fact table, thereby improving response times when querying solely from the dimensions.
在很多实际情况下，缩短此类环境中开销很大的远程服务调用的响应时间都是一项关键的挑战。
Reducing the response time of costly remote service invocations in such environments is a critical challenge in many real life cases.
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