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.
任意真正响应时间的指示都可能会产生错误的结论，并对那些实际上并不能改进产品的方面进行讨论。
Any indication that these are real response times could lead to the wrong conclusions and having discussions that do not focus on product improvement.
图3展示了用电子表格分析用户和响应时间的方法，这只是为了完整起见，实际上这种方法不值得推荐。
Figure 3 shows a spreadsheet analysis of users and response times, but this is here for completeness and is not recommended.
实际生产响应时间将根据机器、内存量、网络负荷和速度、Web服务器负荷和其他应用程序消耗的处理时间而有所不同。
Actual production response times will vary by machine, amount of memory, network load and speed, Web server load, and the processing time consumed by other applications.
下表给出基于实际Web页面大小的响应时间算术差。
The mathematical differences in response time, based on actual Web page sizes, are shown in the following table.
因为现在只进行实际执行用户请求所需的工作，所以响应时间减少了，DocumentManager中间层服务器的可伸缩性大大提高了。
Response times are reduced and the scalability of the Document Manager middle-tier server is greatly increased since it is now doing only the work required to actually perform the user's request.
当并发数增加到超过该值时，由于线程争用CPU时间，所以事务响应时间将增加，因而实际上并未带来任何吞吐量方面的改进。
Increasing the concurrency beyond this value will increase the transaction response time as threads compete for CPU time, and not actually yield any throughput improvement.
比如，假设一个应用程序被分配了一个不符合实际的服务水平参数，比如一个过于积极的响应时间。
Suppose, for example, that an application is assigned an unrealistic service level agreement parameter, such as an aggressive response time.
这实际上是一个乘数因子，使用它判断实现的响应时间与服务目标相比是好是坏。
This is effectively a multiplier which is used to determine “how good” or “how bad” the achieved response time is when compared to the service goal.
通常选择平均响应时间的原因在于，如果目标不可达和不切实际，则 zWLM功能将放弃任何实现该目标的尝试。
The average response time is usually chosen because often, if the goal is unachievable and unrealistic, the zWLM function discards any attempt to achieve it.
此时程序的“实际执行时间”，即整体执行时间与等待用户响应时间之差，才能够真实地反映用户可察觉的系统处理能力。
So the subtraction of user input time from total time, namely the "real execution time", can truly reflect the user-perceived performance.
此时程序的“实际执行时间”，即整体执行时间与等待用户响应时间之差，才能够真实地反映用户可察觉的系统处理能力。
So the subtraction of user input time from total time, namely the "real execution time", can truly reflect the user-perceived performance.
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