Be very leery of the results of any performance measurement that does not involve a realistic program load over a long period of time.

对于那些没有包含什么实际的程序负荷，测试时间不够长的性能测试的结果，一定要非常当心。

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We focus on process and measurement, and we manufacture and apply information to improve program performance.

我们专注于过程和测量，并制造运用信息来提高程序的性能。

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The principle of system measurement, performance index and hardware construction are described simply, and the block diagram of main program is given.

本文对系统的测量原理、性能指标及硬件组成作了简要介绍，并给出了主要程序框图。

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